Finding the Fourth Proportional to 10,401.78, 14,353.96 and 5,925.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,401.78 : 14,353.96 = 5,925.72 : x
2. Step 2: Convert to fraction form
   10,401.78/14,353.96 = 5,925.72/x
3. Step 3: Cross multiply
   10,401.78x = 14,353.96 × 5,925.72
4. Step 4: Simplify right side
   10,401.78x = 85,057,597.97
5. Step 5: Solve for x
   x = 85,057,597.97/10,401.78
6. Step 6: Final answer
   x = 8,177.21