Finding the Fourth Proportional to 10,424.40, 14,385.69 and 5,708.67

Step by Step Solution

1. Step 1: Write the proportion equation
   10,424.40 : 14,385.69 = 5,708.67 : x
2. Step 2: Convert to fraction form
   10,424.40/14,385.69 = 5,708.67/x
3. Step 3: Cross multiply
   10,424.40x = 14,385.69 × 5,708.67
4. Step 4: Simplify right side
   10,424.40x = 82,123,156.93
5. Step 5: Solve for x
   x = 82,123,156.93/10,424.40
6. Step 6: Final answer
   x = 7,877.97