Finding the Fourth Proportional to 14,280.56, 21,422.25 and 4,919.34

Step by Step Solution

1. Step 1: Write the proportion equation
   14,280.56 : 21,422.25 = 4,919.34 : x
2. Step 2: Convert to fraction form
   14,280.56/21,422.25 = 4,919.34/x
3. Step 3: Cross multiply
   14,280.56x = 21,422.25 × 4,919.34
4. Step 4: Simplify right side
   14,280.56x = 105,383,331.32
5. Step 5: Solve for x
   x = 105,383,331.32/14,280.56
6. Step 6: Final answer
   x = 7,379.50