Finding the Fourth Proportional to 10,435.60, 14,401.68 and 5,720.08

Step by Step Solution

1. Step 1: Write the proportion equation
   10,435.60 : 14,401.68 = 5,720.08 : x
2. Step 2: Convert to fraction form
   10,435.60/14,401.68 = 5,720.08/x
3. Step 3: Cross multiply
   10,435.60x = 14,401.68 × 5,720.08
4. Step 4: Simplify right side
   10,435.60x = 82,378,761.73
5. Step 5: Solve for x
   x = 82,378,761.73/10,435.60
6. Step 6: Final answer
   x = 7,894.01