Finding the Fourth Proportional to 14,667.12, 22,005.72 and 4,280.40

Step by Step Solution

1. Step 1: Write the proportion equation
   14,667.12 : 22,005.72 = 4,280.40 : x
2. Step 2: Convert to fraction form
   14,667.12/22,005.72 = 4,280.40/x
3. Step 3: Cross multiply
   14,667.12x = 22,005.72 × 4,280.40
4. Step 4: Simplify right side
   14,667.12x = 94,193,283.89
5. Step 5: Solve for x
   x = 94,193,283.89/14,667.12
6. Step 6: Final answer
   x = 6,422.07