Finding the Fourth Proportional to 10,424.50, 14,385.81 and 5,708.96

Step by Step Solution

1. Step 1: Write the proportion equation
   10,424.50 : 14,385.81 = 5,708.96 : x
2. Step 2: Convert to fraction form
   10,424.50/14,385.81 = 5,708.96/x
3. Step 3: Cross multiply
   10,424.50x = 14,385.81 × 5,708.96
4. Step 4: Simplify right side
   10,424.50x = 82,128,013.86
5. Step 5: Solve for x
   x = 82,128,013.86/10,424.50
6. Step 6: Final answer
   x = 7,878.36