Finding the Fourth Proportional to 7,339.48, 10,128.47 and 4,152.69

Step by Step Solution

1. Step 1: Write the proportion equation
   7,339.48 : 10,128.47 = 4,152.69 : x
2. Step 2: Convert to fraction form
   7,339.48/10,128.47 = 4,152.69/x
3. Step 3: Cross multiply
   7,339.48x = 10,128.47 × 4,152.69
4. Step 4: Simplify right side
   7,339.48x = 42,060,375.32
5. Step 5: Solve for x
   x = 42,060,375.32/7,339.48
6. Step 6: Final answer
   x = 5,730.70