Finding the Fourth Proportional to 4,726.72, 7,088.56 and 3,275.20

Step by Step Solution

1. Step 1: Write the proportion equation
   4,726.72 : 7,088.56 = 3,275.20 : x
2. Step 2: Convert to fraction form
   4,726.72/7,088.56 = 3,275.20/x
3. Step 3: Cross multiply
   4,726.72x = 7,088.56 × 3,275.20
4. Step 4: Simplify right side
   4,726.72x = 23,216,451.71
5. Step 5: Solve for x
   x = 23,216,451.71/4,726.72
6. Step 6: Final answer
   x = 4,911.75