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Finding the Fourth Proportional to 76,872.85, 106,036.29 and 49,638.22

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Solution

The fourth proportional to 76,872.85, 106,036.29 and 49,638.22 is: 68,469.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,872.85 : 106,036.29 = 49,638.22 : x
  2. Step 2: Convert to fraction form
    76,872.85/106,036.29 = 49,638.22/x
  3. Step 3: Cross multiply
    76,872.85x = 106,036.29 × 49,638.22
  4. Step 4: Simplify right side
    76,872.85x = 5,263,452,425.91
  5. Step 5: Solve for x
    x = 5,263,452,425.91/76,872.85
  6. Step 6: Final answer
    x = 68,469.59

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