Finding the Fourth Proportional to 31,419.62, 43,359.90 and 17,272.82

Step by Step Solution

1. Step 1: Write the proportion equation
   31,419.62 : 43,359.90 = 17,272.82 : x
2. Step 2: Convert to fraction form
   31,419.62/43,359.90 = 17,272.82/x
3. Step 3: Cross multiply
   31,419.62x = 43,359.90 × 17,272.82
4. Step 4: Simplify right side
   31,419.62x = 748,947,747.92
5. Step 5: Solve for x
   x = 748,947,747.92/31,419.62
6. Step 6: Final answer
   x = 23,836.94