Finding the Fourth Proportional to 13,981.72, 19,294.42 and 8,016.88

Step by Step Solution

1. Step 1: Write the proportion equation
   13,981.72 : 19,294.42 = 8,016.88 : x
2. Step 2: Convert to fraction form
   13,981.72/19,294.42 = 8,016.88/x
3. Step 3: Cross multiply
   13,981.72x = 19,294.42 × 8,016.88
4. Step 4: Simplify right side
   13,981.72x = 154,681,049.81
5. Step 5: Solve for x
   x = 154,681,049.81/13,981.72
6. Step 6: Final answer
   x = 11,063.09