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Finding the Fourth Proportional to 87,628.87, 120,853.33 and 74,082.97

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Solution

The fourth proportional to 87,628.87, 120,853.33 and 74,082.97 is: 102,171.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,628.87 : 120,853.33 = 74,082.97 : x
  2. Step 2: Convert to fraction form
    87,628.87/120,853.33 = 74,082.97/x
  3. Step 3: Cross multiply
    87,628.87x = 120,853.33 × 74,082.97
  4. Step 4: Simplify right side
    87,628.87x = 8,953,173,620.79
  5. Step 5: Solve for x
    x = 8,953,173,620.79/87,628.87
  6. Step 6: Final answer
    x = 102,171.51

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