Finding the Fourth Proportional to 22,604.06, 31,192.35 and 12,531.91

Step by Step Solution

1. Step 1: Write the proportion equation
   22,604.06 : 31,192.35 = 12,531.91 : x
2. Step 2: Convert to fraction form
   22,604.06/31,192.35 = 12,531.91/x
3. Step 3: Cross multiply
   22,604.06x = 31,192.35 × 12,531.91
4. Step 4: Simplify right side
   22,604.06x = 390,899,722.89
5. Step 5: Solve for x
   x = 390,899,722.89/22,604.06
6. Step 6: Final answer
   x = 17,293.34