Finding the Fourth Proportional to 10,978.89, 15,150.90 and 5,943.17

Step by Step Solution

1. Step 1: Write the proportion equation
   10,978.89 : 15,150.90 = 5,943.17 : x
2. Step 2: Convert to fraction form
   10,978.89/15,150.90 = 5,943.17/x
3. Step 3: Cross multiply
   10,978.89x = 15,150.90 × 5,943.17
4. Step 4: Simplify right side
   10,978.89x = 90,044,401.09
5. Step 5: Solve for x
   x = 90,044,401.09/10,978.89
6. Step 6: Final answer
   x = 8,201.59