Finding the Fourth Proportional to 14,141.92, 19,516.16 and 7,854.72

Step by Step Solution

1. Step 1: Write the proportion equation
   14,141.92 : 19,516.16 = 7,854.72 : x
2. Step 2: Convert to fraction form
   14,141.92/19,516.16 = 7,854.72/x
3. Step 3: Cross multiply
   14,141.92x = 19,516.16 × 7,854.72
4. Step 4: Simplify right side
   14,141.92x = 153,293,972.28
5. Step 5: Solve for x
   x = 153,293,972.28/14,141.92
6. Step 6: Final answer
   x = 10,839.69