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Finding the Fourth Proportional to 74,174.72, 111,285.84 and 21,587.36

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Solution

The fourth proportional to 74,174.72, 111,285.84 and 21,587.36 is: 32,387.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,174.72 : 111,285.84 = 21,587.36 : x
  2. Step 2: Convert to fraction form
    74,174.72/111,285.84 = 21,587.36/x
  3. Step 3: Cross multiply
    74,174.72x = 111,285.84 × 21,587.36
  4. Step 4: Simplify right side
    74,174.72x = 2,402,367,490.98
  5. Step 5: Solve for x
    x = 2,402,367,490.98/74,174.72
  6. Step 6: Final answer
    x = 32,387.95

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