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Finding the Fourth Proportional to 92,856.05, 139,363.60 and 92,157.12

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Solution

The fourth proportional to 92,856.05, 139,363.60 and 92,157.12 is: 138,314.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,856.05 : 139,363.60 = 92,157.12 : x
  2. Step 2: Convert to fraction form
    92,856.05/139,363.60 = 92,157.12/x
  3. Step 3: Cross multiply
    92,856.05x = 139,363.60 × 92,157.12
  4. Step 4: Simplify right side
    92,856.05x = 12,843,348,008.83
  5. Step 5: Solve for x
    x = 12,843,348,008.83/92,856.05
  6. Step 6: Final answer
    x = 138,314.61

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