Finding the Fourth Proportional to 31,499.92, 43,469.90 and 17,352.78

Step by Step Solution

1. Step 1: Write the proportion equation
   31,499.92 : 43,469.90 = 17,352.78 : x
2. Step 2: Convert to fraction form
   31,499.92/43,469.90 = 17,352.78/x
3. Step 3: Cross multiply
   31,499.92x = 43,469.90 × 17,352.78
4. Step 4: Simplify right side
   31,499.92x = 754,323,611.32
5. Step 5: Solve for x
   x = 754,323,611.32/31,499.92
6. Step 6: Final answer
   x = 23,946.84