Finding the Fourth Proportional to 10,981.18, 15,153.85 and 5,945.36

Step by Step Solution

1. Step 1: Write the proportion equation
   10,981.18 : 15,153.85 = 5,945.36 : x
2. Step 2: Convert to fraction form
   10,981.18/15,153.85 = 5,945.36/x
3. Step 3: Cross multiply
   10,981.18x = 15,153.85 × 5,945.36
4. Step 4: Simplify right side
   10,981.18x = 90,095,077.10
5. Step 5: Solve for x
   x = 90,095,077.10/10,981.18
6. Step 6: Final answer
   x = 8,204.50