Finding the Fourth Proportional to 7,151.94, 10,726.35 and 3,638.22

Step by Step Solution

1. Step 1: Write the proportion equation
   7,151.94 : 10,726.35 = 3,638.22 : x
2. Step 2: Convert to fraction form
   7,151.94/10,726.35 = 3,638.22/x
3. Step 3: Cross multiply
   7,151.94x = 10,726.35 × 3,638.22
4. Step 4: Simplify right side
   7,151.94x = 39,024,821.10
5. Step 5: Solve for x
   x = 39,024,821.10/7,151.94
6. Step 6: Final answer
   x = 5,456.54