Finding the Fourth Proportional to 12,938.38, 17,854.96 and 7,350.46

Step by Step Solution

1. Step 1: Write the proportion equation
   12,938.38 : 17,854.96 = 7,350.46 : x
2. Step 2: Convert to fraction form
   12,938.38/17,854.96 = 7,350.46/x
3. Step 3: Cross multiply
   12,938.38x = 17,854.96 × 7,350.46
4. Step 4: Simplify right side
   12,938.38x = 131,242,080.01
5. Step 5: Solve for x
   x = 131,242,080.01/12,938.38
6. Step 6: Final answer
   x = 10,143.63