Finding the Fourth Proportional to 7,726.89, 11,585.39 and 5,091.33

Step by Step Solution

1. Step 1: Write the proportion equation
   7,726.89 : 11,585.39 = 5,091.33 : x
2. Step 2: Convert to fraction form
   7,726.89/11,585.39 = 5,091.33/x
3. Step 3: Cross multiply
   7,726.89x = 11,585.39 × 5,091.33
4. Step 4: Simplify right side
   7,726.89x = 58,985,018.21
5. Step 5: Solve for x
   x = 58,985,018.21/7,726.89
6. Step 6: Final answer
   x = 7,633.73