Finding the Fourth Proportional to 7,730.72, 11,601.52 and 4,811.04

Step by Step Solution

1. Step 1: Write the proportion equation
   7,730.72 : 11,601.52 = 4,811.04 : x
2. Step 2: Convert to fraction form
   7,730.72/11,601.52 = 4,811.04/x
3. Step 3: Cross multiply
   7,730.72x = 11,601.52 × 4,811.04
4. Step 4: Simplify right side
   7,730.72x = 55,815,376.78
5. Step 5: Solve for x
   x = 55,815,376.78/7,730.72
6. Step 6: Final answer
   x = 7,219.95