Finding the Fourth Proportional to 22,543.50, 31,109.18 and 12,472.37

Step by Step Solution

1. Step 1: Write the proportion equation
   22,543.50 : 31,109.18 = 12,472.37 : x
2. Step 2: Convert to fraction form
   22,543.50/31,109.18 = 12,472.37/x
3. Step 3: Cross multiply
   22,543.50x = 31,109.18 × 12,472.37
4. Step 4: Simplify right side
   22,543.50x = 388,005,203.36
5. Step 5: Solve for x
   x = 388,005,203.36/22,543.50
6. Step 6: Final answer
   x = 17,211.40