Finding the Fourth Proportional to 9,376.48, 12,939.57 and 5,397.52

Step by Step Solution

1. Step 1: Write the proportion equation
   9,376.48 : 12,939.57 = 5,397.52 : x
2. Step 2: Convert to fraction form
   9,376.48/12,939.57 = 5,397.52/x
3. Step 3: Cross multiply
   9,376.48x = 12,939.57 × 5,397.52
4. Step 4: Simplify right side
   9,376.48x = 69,841,587.87
5. Step 5: Solve for x
   x = 69,841,587.87/9,376.48
6. Step 6: Final answer
   x = 7,448.59