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Finding the Fourth Proportional to 85,908.89, 128,832.46 and 29,733.75

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Solution

The fourth proportional to 85,908.89, 128,832.46 and 29,733.75 is: 44,589.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,908.89 : 128,832.46 = 29,733.75 : x
  2. Step 2: Convert to fraction form
    85,908.89/128,832.46 = 29,733.75/x
  3. Step 3: Cross multiply
    85,908.89x = 128,832.46 × 29,733.75
  4. Step 4: Simplify right side
    85,908.89x = 3,830,672,083.19
  5. Step 5: Solve for x
    x = 3,830,672,083.19/85,908.89
  6. Step 6: Final answer
    x = 44,589.94

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