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Finding the Fourth Proportional to 7,208.54, 9,947.79 and 4,064.73

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Solution

The fourth proportional to 7,208.54, 9,947.79 and 4,064.73 is: 5,609.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,208.54 : 9,947.79 = 4,064.73 : x
  2. Step 2: Convert to fraction form
    7,208.54/9,947.79 = 4,064.73/x
  3. Step 3: Cross multiply
    7,208.54x = 9,947.79 × 4,064.73
  4. Step 4: Simplify right side
    7,208.54x = 40,435,080.45
  5. Step 5: Solve for x
    x = 40,435,080.45/7,208.54
  6. Step 6: Final answer
    x = 5,609.33

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