Finding the Fourth Proportional to 7,943.90, 10,949.37 and 5,581.94

Step by Step Solution

1. Step 1: Write the proportion equation
   7,943.90 : 10,949.37 = 5,581.94 : x
2. Step 2: Convert to fraction form
   7,943.90/10,949.37 = 5,581.94/x
3. Step 3: Cross multiply
   7,943.90x = 10,949.37 × 5,581.94
4. Step 4: Simplify right side
   7,943.90x = 61,118,726.38
5. Step 5: Solve for x
   x = 61,118,726.38/7,943.90
6. Step 6: Final answer
   x = 7,693.79