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Finding the Fourth Proportional to 13,255.25, 19,878.63 and 5,859.55

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Solution

The fourth proportional to 13,255.25, 19,878.63 and 5,859.55 is: 8,787.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,255.25 : 19,878.63 = 5,859.55 : x
  2. Step 2: Convert to fraction form
    13,255.25/19,878.63 = 5,859.55/x
  3. Step 3: Cross multiply
    13,255.25x = 19,878.63 × 5,859.55
  4. Step 4: Simplify right side
    13,255.25x = 116,479,826.42
  5. Step 5: Solve for x
    x = 116,479,826.42/13,255.25
  6. Step 6: Final answer
    x = 8,787.45

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