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Finding the Fourth Proportional to 211,765.40, 317,580.75 and 69,577.91

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Solution

The fourth proportional to 211,765.40, 317,580.75 and 69,577.91 is: 104,344.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,765.40 : 317,580.75 = 69,577.91 : x
  2. Step 2: Convert to fraction form
    211,765.40/317,580.75 = 69,577.91/x
  3. Step 3: Cross multiply
    211,765.40x = 317,580.75 × 69,577.91
  4. Step 4: Simplify right side
    211,765.40x = 22,096,604,841.23
  5. Step 5: Solve for x
    x = 22,096,604,841.23/211,765.40
  6. Step 6: Final answer
    x = 104,344.74

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