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Finding the Fourth Proportional to 13,255.10, 19,881.61 and 5,859.80

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Solution

The fourth proportional to 13,255.10, 19,881.61 and 5,859.80 is: 8,789.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,255.10 : 19,881.61 = 5,859.80 : x
  2. Step 2: Convert to fraction form
    13,255.10/19,881.61 = 5,859.80/x
  3. Step 3: Cross multiply
    13,255.10x = 19,881.61 × 5,859.80
  4. Step 4: Simplify right side
    13,255.10x = 116,502,258.28
  5. Step 5: Solve for x
    x = 116,502,258.28/13,255.10
  6. Step 6: Final answer
    x = 8,789.24

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