Finding the Fourth Proportional to 14,253.28, 19,667.83 and 7,879.01

Step by Step Solution

1. Step 1: Write the proportion equation
   14,253.28 : 19,667.83 = 7,879.01 : x
2. Step 2: Convert to fraction form
   14,253.28/19,667.83 = 7,879.01/x
3. Step 3: Cross multiply
   14,253.28x = 19,667.83 × 7,879.01
4. Step 4: Simplify right side
   14,253.28x = 154,963,029.25
5. Step 5: Solve for x
   x = 154,963,029.25/14,253.28
6. Step 6: Final answer
   x = 10,872.10