Finding the Fourth Proportional to 7,234.40, 10,834.72 and 5,577.76

Step by Step Solution

1. Step 1: Write the proportion equation
   7,234.40 : 10,834.72 = 5,577.76 : x
2. Step 2: Convert to fraction form
   7,234.40/10,834.72 = 5,577.76/x
3. Step 3: Cross multiply
   7,234.40x = 10,834.72 × 5,577.76
4. Step 4: Simplify right side
   7,234.40x = 60,433,467.83
5. Step 5: Solve for x
   x = 60,433,467.83/7,234.40
6. Step 6: Final answer
   x = 8,353.63