Finding the Fourth Proportional to 31,475.61, 43,435.98 and 17,328.15

Step by Step Solution

1. Step 1: Write the proportion equation
   31,475.61 : 43,435.98 = 17,328.15 : x
2. Step 2: Convert to fraction form
   31,475.61/43,435.98 = 17,328.15/x
3. Step 3: Cross multiply
   31,475.61x = 43,435.98 × 17,328.15
4. Step 4: Simplify right side
   31,475.61x = 752,665,176.84
5. Step 5: Solve for x
   x = 752,665,176.84/31,475.61
6. Step 6: Final answer
   x = 23,912.65