Finding the Fourth Proportional to 14,256.56, 19,673.25 and 7,882.78

Step by Step Solution

1. Step 1: Write the proportion equation
   14,256.56 : 19,673.25 = 7,882.78 : x
2. Step 2: Convert to fraction form
   14,256.56/19,673.25 = 7,882.78/x
3. Step 3: Cross multiply
   14,256.56x = 19,673.25 × 7,882.78
4. Step 4: Simplify right side
   14,256.56x = 155,079,763.85
5. Step 5: Solve for x
   x = 155,079,763.85/14,256.56
6. Step 6: Final answer
   x = 10,877.79