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Finding the Fourth Proportional to 51,449.66, 77,177.49 and 19,859.89

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Solution

The fourth proportional to 51,449.66, 77,177.49 and 19,859.89 is: 29,790.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,449.66 : 77,177.49 = 19,859.89 : x
  2. Step 2: Convert to fraction form
    51,449.66/77,177.49 = 19,859.89/x
  3. Step 3: Cross multiply
    51,449.66x = 77,177.49 × 19,859.89
  4. Step 4: Simplify right side
    51,449.66x = 1,532,736,461.88
  5. Step 5: Solve for x
    x = 1,532,736,461.88/51,449.66
  6. Step 6: Final answer
    x = 29,790.99

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