Finding the Fourth Proportional to 10,081.56, 15,119.28 and 6,981.48

Step by Step Solution

1. Step 1: Write the proportion equation
   10,081.56 : 15,119.28 = 6,981.48 : x
2. Step 2: Convert to fraction form
   10,081.56/15,119.28 = 6,981.48/x
3. Step 3: Cross multiply
   10,081.56x = 15,119.28 × 6,981.48
4. Step 4: Simplify right side
   10,081.56x = 105,554,950.93
5. Step 5: Solve for x
   x = 105,554,950.93/10,081.56
6. Step 6: Final answer
   x = 10,470.10