Finding the Fourth Proportional to 14,078.08, 21,120.72 and 4,217.32

Step by Step Solution

1. Step 1: Write the proportion equation
   14,078.08 : 21,120.72 = 4,217.32 : x
2. Step 2: Convert to fraction form
   14,078.08/21,120.72 = 4,217.32/x
3. Step 3: Cross multiply
   14,078.08x = 21,120.72 × 4,217.32
4. Step 4: Simplify right side
   14,078.08x = 89,072,834.87
5. Step 5: Solve for x
   x = 89,072,834.87/14,078.08
6. Step 6: Final answer
   x = 6,327.06