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Finding the Fourth Proportional to 256,589.56, 384,838.98 and 69,615.64

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Solution

The fourth proportional to 256,589.56, 384,838.98 and 69,615.64 is: 104,411.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,589.56 : 384,838.98 = 69,615.64 : x
  2. Step 2: Convert to fraction form
    256,589.56/384,838.98 = 69,615.64/x
  3. Step 3: Cross multiply
    256,589.56x = 384,838.98 × 69,615.64
  4. Step 4: Simplify right side
    256,589.56x = 26,790,811,889.65
  5. Step 5: Solve for x
    x = 26,790,811,889.65/256,589.56
  6. Step 6: Final answer
    x = 104,411.15

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