Finding the Fourth Proportional to 22,524.10, 31,091.61 and 13,572.10

Step by Step Solution

1. Step 1: Write the proportion equation
   22,524.10 : 31,091.61 = 13,572.10 : x
2. Step 2: Convert to fraction form
   22,524.10/31,091.61 = 13,572.10/x
3. Step 3: Cross multiply
   22,524.10x = 31,091.61 × 13,572.10
4. Step 4: Simplify right side
   22,524.10x = 421,978,440.08
5. Step 5: Solve for x
   x = 421,978,440.08/22,524.10
6. Step 6: Final answer
   x = 18,734.53