Finding the Fourth Proportional to 14,116.84, 19,476.78 and 8,147.72

Step by Step Solution

1. Step 1: Write the proportion equation
   14,116.84 : 19,476.78 = 8,147.72 : x
2. Step 2: Convert to fraction form
   14,116.84/19,476.78 = 8,147.72/x
3. Step 3: Cross multiply
   14,116.84x = 19,476.78 × 8,147.72
4. Step 4: Simplify right side
   14,116.84x = 158,691,349.94
5. Step 5: Solve for x
   x = 158,691,349.94/14,116.84
6. Step 6: Final answer
   x = 11,241.28