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Finding the Fourth Proportional to 92,039.80, 137,857.32 and 76,063.76

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Solution

The fourth proportional to 92,039.80, 137,857.32 and 76,063.76 is: 113,928.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,039.80 : 137,857.32 = 76,063.76 : x
  2. Step 2: Convert to fraction form
    92,039.80/137,857.32 = 76,063.76/x
  3. Step 3: Cross multiply
    92,039.80x = 137,857.32 × 76,063.76
  4. Step 4: Simplify right side
    92,039.80x = 10,485,946,102.72
  5. Step 5: Solve for x
    x = 10,485,946,102.72/92,039.80
  6. Step 6: Final answer
    x = 113,928.39

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