Finding the Fourth Proportional to 10,424.53, 14,385.90 and 5,708.81

Step by Step Solution

1. Step 1: Write the proportion equation
   10,424.53 : 14,385.90 = 5,708.81 : x
2. Step 2: Convert to fraction form
   10,424.53/14,385.90 = 5,708.81/x
3. Step 3: Cross multiply
   10,424.53x = 14,385.90 × 5,708.81
4. Step 4: Simplify right side
   10,424.53x = 82,126,427.15
5. Step 5: Solve for x
   x = 82,126,427.15/10,424.53
6. Step 6: Final answer
   x = 7,878.19