Finding the Fourth Proportional to 5,530.42, 8,313.86 and 5,124.61

Step by Step Solution

1. Step 1: Write the proportion equation
   5,530.42 : 8,313.86 = 5,124.61 : x
2. Step 2: Convert to fraction form
   5,530.42/8,313.86 = 5,124.61/x
3. Step 3: Cross multiply
   5,530.42x = 8,313.86 × 5,124.61
4. Step 4: Simplify right side
   5,530.42x = 42,605,290.09
5. Step 5: Solve for x
   x = 42,605,290.09/5,530.42
6. Step 6: Final answer
   x = 7,703.81