Finding the Fourth Proportional to 22,748.46, 31,395.60 and 13,317

Step by Step Solution

1. Step 1: Write the proportion equation
   22,748.46 : 31,395.60 = 13,317 : x
2. Step 2: Convert to fraction form
   22,748.46/31,395.60 = 13,317/x
3. Step 3: Cross multiply
   22,748.46x = 31,395.60 × 13,317
4. Step 4: Simplify right side
   22,748.46x = 418,095,205.20
5. Step 5: Solve for x
   x = 418,095,205.20/22,748.46
6. Step 6: Final answer
   x = 18,379.06