Finding the Fourth Proportional to 7,845.55, 10,817.16 and 5,606.61

Step by Step Solution

1. Step 1: Write the proportion equation
   7,845.55 : 10,817.16 = 5,606.61 : x
2. Step 2: Convert to fraction form
   7,845.55/10,817.16 = 5,606.61/x
3. Step 3: Cross multiply
   7,845.55x = 10,817.16 × 5,606.61
4. Step 4: Simplify right side
   7,845.55x = 60,647,597.43
5. Step 5: Solve for x
   x = 60,647,597.43/7,845.55
6. Step 6: Final answer
   x = 7,730.19