Finding the Fourth Proportional to 9,375.15, 12,937.55 and 5,396.34

Step by Step Solution

1. Step 1: Write the proportion equation
   9,375.15 : 12,937.55 = 5,396.34 : x
2. Step 2: Convert to fraction form
   9,375.15/12,937.55 = 5,396.34/x
3. Step 3: Cross multiply
   9,375.15x = 12,937.55 × 5,396.34
4. Step 4: Simplify right side
   9,375.15x = 69,815,418.57
5. Step 5: Solve for x
   x = 69,815,418.57/9,375.15
6. Step 6: Final answer
   x = 7,446.86