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Finding the Fourth Proportional to 13,619.23, 20,418.46 and 7,041.22

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Solution

The fourth proportional to 13,619.23, 20,418.46 and 7,041.22 is: 10,556.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,619.23 : 20,418.46 = 7,041.22 : x
  2. Step 2: Convert to fraction form
    13,619.23/20,418.46 = 7,041.22/x
  3. Step 3: Cross multiply
    13,619.23x = 20,418.46 × 7,041.22
  4. Step 4: Simplify right side
    13,619.23x = 143,770,868.92
  5. Step 5: Solve for x
    x = 143,770,868.92/13,619.23
  6. Step 6: Final answer
    x = 10,556.46

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