Finding the Fourth Proportional to 22,531.98, 31,091.91 and 13,101.18

Step by Step Solution

1. Step 1: Write the proportion equation
   22,531.98 : 31,091.91 = 13,101.18 : x
2. Step 2: Convert to fraction form
   22,531.98/31,091.91 = 13,101.18/x
3. Step 3: Cross multiply
   22,531.98x = 31,091.91 × 13,101.18
4. Step 4: Simplify right side
   22,531.98x = 407,340,709.45
5. Step 5: Solve for x
   x = 407,340,709.45/22,531.98
6. Step 6: Final answer
   x = 18,078.34