Finding the Fourth Proportional to 9,328.32, 12,869.82 and 5,348.16

Step by Step Solution

1. Step 1: Write the proportion equation
   9,328.32 : 12,869.82 = 5,348.16 : x
2. Step 2: Convert to fraction form
   9,328.32/12,869.82 = 5,348.16/x
3. Step 3: Cross multiply
   9,328.32x = 12,869.82 × 5,348.16
4. Step 4: Simplify right side
   9,328.32x = 68,829,856.53
5. Step 5: Solve for x
   x = 68,829,856.53/9,328.32
6. Step 6: Final answer
   x = 7,378.59