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Finding the Fourth Proportional to 101,711.57, 140,370.24 and 56,403.74

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Solution

The fourth proportional to 101,711.57, 140,370.24 and 56,403.74 is: 77,841.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,711.57 : 140,370.24 = 56,403.74 : x
  2. Step 2: Convert to fraction form
    101,711.57/140,370.24 = 56,403.74/x
  3. Step 3: Cross multiply
    101,711.57x = 140,370.24 × 56,403.74
  4. Step 4: Simplify right side
    101,711.57x = 7,917,405,818.85
  5. Step 5: Solve for x
    x = 7,917,405,818.85/101,711.57
  6. Step 6: Final answer
    x = 77,841.75

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