Finding the Fourth Proportional to 7,726.72, 10,668.72 and 4,746.64

Step by Step Solution

1. Step 1: Write the proportion equation
   7,726.72 : 10,668.72 = 4,746.64 : x
2. Step 2: Convert to fraction form
   7,726.72/10,668.72 = 4,746.64/x
3. Step 3: Cross multiply
   7,726.72x = 10,668.72 × 4,746.64
4. Step 4: Simplify right side
   7,726.72x = 50,640,573.10
5. Step 5: Solve for x
   x = 50,640,573.10/7,726.72
6. Step 6: Final answer
   x = 6,553.95