Finding the Fourth Proportional to 10,407.38, 14,361.89 and 5,691.56

Step by Step Solution

1. Step 1: Write the proportion equation
   10,407.38 : 14,361.89 = 5,691.56 : x
2. Step 2: Convert to fraction form
   10,407.38/14,361.89 = 5,691.56/x
3. Step 3: Cross multiply
   10,407.38x = 14,361.89 × 5,691.56
4. Step 4: Simplify right side
   10,407.38x = 81,741,458.38
5. Step 5: Solve for x
   x = 81,741,458.38/10,407.38
6. Step 6: Final answer
   x = 7,854.19