Finding the Fourth Proportional to 23,095.55, 31,871.86 and 12,485.18

Step by Step Solution

1. Step 1: Write the proportion equation
   23,095.55 : 31,871.86 = 12,485.18 : x
2. Step 2: Convert to fraction form
   23,095.55/31,871.86 = 12,485.18/x
3. Step 3: Cross multiply
   23,095.55x = 31,871.86 × 12,485.18
4. Step 4: Simplify right side
   23,095.55x = 397,925,957.50
5. Step 5: Solve for x
   x = 397,925,957.50/23,095.55
6. Step 6: Final answer
   x = 17,229.55