Finding the Fourth Proportional to 10,981.29, 15,154.18 and 5,945.51

Step by Step Solution

1. Step 1: Write the proportion equation
   10,981.29 : 15,154.18 = 5,945.51 : x
2. Step 2: Convert to fraction form
   10,981.29/15,154.18 = 5,945.51/x
3. Step 3: Cross multiply
   10,981.29x = 15,154.18 × 5,945.51
4. Step 4: Simplify right side
   10,981.29x = 90,099,328.73
5. Step 5: Solve for x
   x = 90,099,328.73/10,981.29
6. Step 6: Final answer
   x = 8,204.80