Finding the Fourth Proportional to 7,505.43, 10,357.39 and 4,148.30

Step by Step Solution

1. Step 1: Write the proportion equation
   7,505.43 : 10,357.39 = 4,148.30 : x
2. Step 2: Convert to fraction form
   7,505.43/10,357.39 = 4,148.30/x
3. Step 3: Cross multiply
   7,505.43x = 10,357.39 × 4,148.30
4. Step 4: Simplify right side
   7,505.43x = 42,965,592.02
5. Step 5: Solve for x
   x = 42,965,592.02/7,505.43
6. Step 6: Final answer
   x = 5,724.60