Finding the Fourth Proportional to 10,981.59, 15,154.59 and 5,945.86

Step by Step Solution

1. Step 1: Write the proportion equation
   10,981.59 : 15,154.59 = 5,945.86 : x
2. Step 2: Convert to fraction form
   10,981.59/15,154.59 = 5,945.86/x
3. Step 3: Cross multiply
   10,981.59x = 15,154.59 × 5,945.86
4. Step 4: Simplify right side
   10,981.59x = 90,107,026.49
5. Step 5: Solve for x
   x = 90,107,026.49/10,981.59
6. Step 6: Final answer
   x = 8,205.28