Finding the Fourth Proportional to 22,524.89, 31,087.19 and 13,091.63

Step by Step Solution

1. Step 1: Write the proportion equation
   22,524.89 : 31,087.19 = 13,091.63 : x
2. Step 2: Convert to fraction form
   22,524.89/31,087.19 = 13,091.63/x
3. Step 3: Cross multiply
   22,524.89x = 31,087.19 × 13,091.63
4. Step 4: Simplify right side
   22,524.89x = 406,981,866.51
5. Step 5: Solve for x
   x = 406,981,866.51/22,524.89
6. Step 6: Final answer
   x = 18,068.10