Finding the Fourth Proportional to 10,435.74, 14,401.20 and 5,720.02

Step by Step Solution

1. Step 1: Write the proportion equation
   10,435.74 : 14,401.20 = 5,720.02 : x
2. Step 2: Convert to fraction form
   10,435.74/14,401.20 = 5,720.02/x
3. Step 3: Cross multiply
   10,435.74x = 14,401.20 × 5,720.02
4. Step 4: Simplify right side
   10,435.74x = 82,375,152.02
5. Step 5: Solve for x
   x = 82,375,152.02/10,435.74
6. Step 6: Final answer
   x = 7,893.56