Finding the Fourth Proportional to 5,530.85, 7,626.72 and 4,272.11

Step by Step Solution

1. Step 1: Write the proportion equation
   5,530.85 : 7,626.72 = 4,272.11 : x
2. Step 2: Convert to fraction form
   5,530.85/7,626.72 = 4,272.11/x
3. Step 3: Cross multiply
   5,530.85x = 7,626.72 × 4,272.11
4. Step 4: Simplify right side
   5,530.85x = 32,582,186.78
5. Step 5: Solve for x
   x = 32,582,186.78/5,530.85
6. Step 6: Final answer
   x = 5,890.99