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Finding the Fourth Proportional to 76,170.12, 105,111.30 and 42,176.22

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Solution

The fourth proportional to 76,170.12, 105,111.30 and 42,176.22 is: 58,201.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,170.12 : 105,111.30 = 42,176.22 : x
  2. Step 2: Convert to fraction form
    76,170.12/105,111.30 = 42,176.22/x
  3. Step 3: Cross multiply
    76,170.12x = 105,111.30 × 42,176.22
  4. Step 4: Simplify right side
    76,170.12x = 4,433,197,313.29
  5. Step 5: Solve for x
    x = 4,433,197,313.29/76,170.12
  6. Step 6: Final answer
    x = 58,201.26

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