Finding the Fourth Proportional to 9,815.08, 13,545.38 and 5,566.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,815.08 : 13,545.38 = 5,566.31 : x
2. Step 2: Convert to fraction form
   9,815.08/13,545.38 = 5,566.31/x
3. Step 3: Cross multiply
   9,815.08x = 13,545.38 × 5,566.31
4. Step 4: Simplify right side
   9,815.08x = 75,397,784.15
5. Step 5: Solve for x
   x = 75,397,784.15/9,815.08
6. Step 6: Final answer
   x = 7,681.83