Finding the Fourth Proportional to 31,545.88, 47,321.34 and 10,485.16

Step by Step Solution

1. Step 1: Write the proportion equation
   31,545.88 : 47,321.34 = 10,485.16 : x
2. Step 2: Convert to fraction form
   31,545.88/47,321.34 = 10,485.16/x
3. Step 3: Cross multiply
   31,545.88x = 47,321.34 × 10,485.16
4. Step 4: Simplify right side
   31,545.88x = 496,171,821.31
5. Step 5: Solve for x
   x = 496,171,821.31/31,545.88
6. Step 6: Final answer
   x = 15,728.58