Finding the Fourth Proportional to 9,815.32, 13,545.24 and 5,339.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,815.32 : 13,545.24 = 5,339.18 : x
2. Step 2: Convert to fraction form
   9,815.32/13,545.24 = 5,339.18/x
3. Step 3: Cross multiply
   9,815.32x = 13,545.24 × 5,339.18
4. Step 4: Simplify right side
   9,815.32x = 72,320,474.50
5. Step 5: Solve for x
   x = 72,320,474.50/9,815.32
6. Step 6: Final answer
   x = 7,368.12