Finding the Fourth Proportional to 7,061.61, 10,605.59 and 6,217.61

Step by Step Solution

1. Step 1: Write the proportion equation
   7,061.61 : 10,605.59 = 6,217.61 : x
2. Step 2: Convert to fraction form
   7,061.61/10,605.59 = 6,217.61/x
3. Step 3: Cross multiply
   7,061.61x = 10,605.59 × 6,217.61
4. Step 4: Simplify right side
   7,061.61x = 65,941,338.32
5. Step 5: Solve for x
   x = 65,941,338.32/7,061.61
6. Step 6: Final answer
   x = 9,338.00