Finding the Fourth Proportional to 22,707.18, 31,337.01 and 13,148.10

Step by Step Solution

1. Step 1: Write the proportion equation
   22,707.18 : 31,337.01 = 13,148.10 : x
2. Step 2: Convert to fraction form
   22,707.18/31,337.01 = 13,148.10/x
3. Step 3: Cross multiply
   22,707.18x = 31,337.01 × 13,148.10
4. Step 4: Simplify right side
   22,707.18x = 412,022,141.18
5. Step 5: Solve for x
   x = 412,022,141.18/22,707.18
6. Step 6: Final answer
   x = 18,145.02