Finding the Fourth Proportional to 9,113.88, 12,580.32 and 5,338.26

Step by Step Solution

1. Step 1: Write the proportion equation
   9,113.88 : 12,580.32 = 5,338.26 : x
2. Step 2: Convert to fraction form
   9,113.88/12,580.32 = 5,338.26/x
3. Step 3: Cross multiply
   9,113.88x = 12,580.32 × 5,338.26
4. Step 4: Simplify right side
   9,113.88x = 67,157,019.04
5. Step 5: Solve for x
   x = 67,157,019.04/9,113.88
6. Step 6: Final answer
   x = 7,368.65