Finding the Fourth Proportional to 22,538.10, 31,104.52 and 13,106

Step by Step Solution

1. Step 1: Write the proportion equation
   22,538.10 : 31,104.52 = 13,106 : x
2. Step 2: Convert to fraction form
   22,538.10/31,104.52 = 13,106/x
3. Step 3: Cross multiply
   22,538.10x = 31,104.52 × 13,106
4. Step 4: Simplify right side
   22,538.10x = 407,655,839.12
5. Step 5: Solve for x
   x = 407,655,839.12/22,538.10
6. Step 6: Final answer
   x = 18,087.41