Finding the Fourth Proportional to 7,505.10, 10,356.50 and 4,147.88

Step by Step Solution

1. Step 1: Write the proportion equation
   7,505.10 : 10,356.50 = 4,147.88 : x
2. Step 2: Convert to fraction form
   7,505.10/10,356.50 = 4,147.88/x
3. Step 3: Cross multiply
   7,505.10x = 10,356.50 × 4,147.88
4. Step 4: Simplify right side
   7,505.10x = 42,957,446.70
5. Step 5: Solve for x
   x = 42,957,446.70/7,505.10
6. Step 6: Final answer
   x = 5,723.77