Finding the Fourth Proportional to 22,529.61, 31,090.25 and 12,458.46

Step by Step Solution

1. Step 1: Write the proportion equation
   22,529.61 : 31,090.25 = 12,458.46 : x
2. Step 2: Convert to fraction form
   22,529.61/31,090.25 = 12,458.46/x
3. Step 3: Cross multiply
   22,529.61x = 31,090.25 × 12,458.46
4. Step 4: Simplify right side
   22,529.61x = 387,336,573.72
5. Step 5: Solve for x
   x = 387,336,573.72/22,529.61
6. Step 6: Final answer
   x = 17,192.33