Finding the Fourth Proportional to 31,553.72, 47,312.82 and 10,482.48

Step by Step Solution

1. Step 1: Write the proportion equation
   31,553.72 : 47,312.82 = 10,482.48 : x
2. Step 2: Convert to fraction form
   31,553.72/47,312.82 = 10,482.48/x
3. Step 3: Cross multiply
   31,553.72x = 47,312.82 × 10,482.48
4. Step 4: Simplify right side
   31,553.72x = 495,955,689.39
5. Step 5: Solve for x
   x = 495,955,689.39/31,553.72
6. Step 6: Final answer
   x = 15,717.82