Finding the Fourth Proportional to 9,294.89, 12,826.15 and 5,315.36

Step by Step Solution

1. Step 1: Write the proportion equation
   9,294.89 : 12,826.15 = 5,315.36 : x
2. Step 2: Convert to fraction form
   9,294.89/12,826.15 = 5,315.36/x
3. Step 3: Cross multiply
   9,294.89x = 12,826.15 × 5,315.36
4. Step 4: Simplify right side
   9,294.89x = 68,175,527.24
5. Step 5: Solve for x
   x = 68,175,527.24/9,294.89
6. Step 6: Final answer
   x = 7,334.74