Finding the Fourth Proportional to 5,530.74, 7,626.57 and 4,112.15

Step by Step Solution

1. Step 1: Write the proportion equation
   5,530.74 : 7,626.57 = 4,112.15 : x
2. Step 2: Convert to fraction form
   5,530.74/7,626.57 = 4,112.15/x
3. Step 3: Cross multiply
   5,530.74x = 7,626.57 × 4,112.15
4. Step 4: Simplify right side
   5,530.74x = 31,361,561.69
5. Step 5: Solve for x
   x = 31,361,561.69/5,530.74
6. Step 6: Final answer
   x = 5,670.41