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Finding the Fourth Proportional to 87,798.72, 131,694.13 and 28,634.90

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Solution

The fourth proportional to 87,798.72, 131,694.13 and 28,634.90 is: 42,951.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,798.72 : 131,694.13 = 28,634.90 : x
  2. Step 2: Convert to fraction form
    87,798.72/131,694.13 = 28,634.90/x
  3. Step 3: Cross multiply
    87,798.72x = 131,694.13 × 28,634.90
  4. Step 4: Simplify right side
    87,798.72x = 3,771,048,200.17
  5. Step 5: Solve for x
    x = 3,771,048,200.17/87,798.72
  6. Step 6: Final answer
    x = 42,951.06

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