Finding the Fourth Proportional to 7,721.52, 11,573.34 and 3,552.78

Step by Step Solution

1. Step 1: Write the proportion equation
   7,721.52 : 11,573.34 = 3,552.78 : x
2. Step 2: Convert to fraction form
   7,721.52/11,573.34 = 3,552.78/x
3. Step 3: Cross multiply
   7,721.52x = 11,573.34 × 3,552.78
4. Step 4: Simplify right side
   7,721.52x = 41,117,530.89
5. Step 5: Solve for x
   x = 41,117,530.89/7,721.52
6. Step 6: Final answer
   x = 5,325.06