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Finding the Fourth Proportional to 17,865.48, 26,800.30 and 6,780.46

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Solution

The fourth proportional to 17,865.48, 26,800.30 and 6,780.46 is: 10,171.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,865.48 : 26,800.30 = 6,780.46 : x
  2. Step 2: Convert to fraction form
    17,865.48/26,800.30 = 6,780.46/x
  3. Step 3: Cross multiply
    17,865.48x = 26,800.30 × 6,780.46
  4. Step 4: Simplify right side
    17,865.48x = 181,718,362.14
  5. Step 5: Solve for x
    x = 181,718,362.14/17,865.48
  6. Step 6: Final answer
    x = 10,171.48

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