Finding the Fourth Proportional to 9,815.22, 13,545.15 and 5,339.06

Step by Step Solution

1. Step 1: Write the proportion equation
   9,815.22 : 13,545.15 = 5,339.06 : x
2. Step 2: Convert to fraction form
   9,815.22/13,545.15 = 5,339.06/x
3. Step 3: Cross multiply
   9,815.22x = 13,545.15 × 5,339.06
4. Step 4: Simplify right side
   9,815.22x = 72,318,300.83
5. Step 5: Solve for x
   x = 72,318,300.83/9,815.22
6. Step 6: Final answer
   x = 7,367.98