Finding the Fourth Proportional to 9,345.90, 12,895.87 and 5,568.98

Step by Step Solution

1. Step 1: Write the proportion equation
   9,345.90 : 12,895.87 = 5,568.98 : x
2. Step 2: Convert to fraction form
   9,345.90/12,895.87 = 5,568.98/x
3. Step 3: Cross multiply
   9,345.90x = 12,895.87 × 5,568.98
4. Step 4: Simplify right side
   9,345.90x = 71,816,763.71
5. Step 5: Solve for x
   x = 71,816,763.71/9,345.90
6. Step 6: Final answer
   x = 7,684.30