Finding the Fourth Proportional to 9,375.97, 12,938.73 and 5,397.07

Step by Step Solution

1. Step 1: Write the proportion equation
   9,375.97 : 12,938.73 = 5,397.07 : x
2. Step 2: Convert to fraction form
   9,375.97/12,938.73 = 5,397.07/x
3. Step 3: Cross multiply
   9,375.97x = 12,938.73 × 5,397.07
4. Step 4: Simplify right side
   9,375.97x = 69,831,231.52
5. Step 5: Solve for x
   x = 69,831,231.52/9,375.97
6. Step 6: Final answer
   x = 7,447.89