Finding the Fourth Proportional to 9,375.52, 12,939.45 and 5,395.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,375.52 : 12,939.45 = 5,395.88 : x
2. Step 2: Convert to fraction form
   9,375.52/12,939.45 = 5,395.88/x
3. Step 3: Cross multiply
   9,375.52x = 12,939.45 × 5,395.88
4. Step 4: Simplify right side
   9,375.52x = 69,819,719.47
5. Step 5: Solve for x
   x = 69,819,719.47/9,375.52
6. Step 6: Final answer
   x = 7,447.02