Finding the Fourth Proportional to 22,540.87, 31,112.67 and 13,111.26

Step by Step Solution

1. Step 1: Write the proportion equation
   22,540.87 : 31,112.67 = 13,111.26 : x
2. Step 2: Convert to fraction form
   22,540.87/31,112.67 = 13,111.26/x
3. Step 3: Cross multiply
   22,540.87x = 31,112.67 × 13,111.26
4. Step 4: Simplify right side
   22,540.87x = 407,926,150.10
5. Step 5: Solve for x
   x = 407,926,150.10/22,540.87
6. Step 6: Final answer
   x = 18,097.18