Finding the Fourth Proportional to 5,550.71, 8,317.80 and 5,140.62

Step by Step Solution

1. Step 1: Write the proportion equation
   5,550.71 : 8,317.80 = 5,140.62 : x
2. Step 2: Convert to fraction form
   5,550.71/8,317.80 = 5,140.62/x
3. Step 3: Cross multiply
   5,550.71x = 8,317.80 × 5,140.62
4. Step 4: Simplify right side
   5,550.71x = 42,758,649.04
5. Step 5: Solve for x
   x = 42,758,649.04/5,550.71
6. Step 6: Final answer
   x = 7,703.28