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Finding the Fourth Proportional to 72,278.72, 99,725.67 and 41,644.31

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Solution

The fourth proportional to 72,278.72, 99,725.67 and 41,644.31 is: 57,458.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,278.72 : 99,725.67 = 41,644.31 : x
  2. Step 2: Convert to fraction form
    72,278.72/99,725.67 = 41,644.31/x
  3. Step 3: Cross multiply
    72,278.72x = 99,725.67 × 41,644.31
  4. Step 4: Simplify right side
    72,278.72x = 4,153,006,716.44
  5. Step 5: Solve for x
    x = 4,153,006,716.44/72,278.72
  6. Step 6: Final answer
    x = 57,458.22

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