Finding the Fourth Proportional to 5,815.10, 8,713.34 and 5,661.34

Step by Step Solution

1. Step 1: Write the proportion equation
   5,815.10 : 8,713.34 = 5,661.34 : x
2. Step 2: Convert to fraction form
   5,815.10/8,713.34 = 5,661.34/x
3. Step 3: Cross multiply
   5,815.10x = 8,713.34 × 5,661.34
4. Step 4: Simplify right side
   5,815.10x = 49,329,180.28
5. Step 5: Solve for x
   x = 49,329,180.28/5,815.10
6. Step 6: Final answer
   x = 8,482.95