Finding the Fourth Proportional to 12,480.72, 18,723.24 and 3,714.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,480.72 : 18,723.24 = 3,714.72 : x
2. Step 2: Convert to fraction form
   12,480.72/18,723.24 = 3,714.72/x
3. Step 3: Cross multiply
   12,480.72x = 18,723.24 × 3,714.72
4. Step 4: Simplify right side
   12,480.72x = 69,551,594.09
5. Step 5: Solve for x
   x = 69,551,594.09/12,480.72
6. Step 6: Final answer
   x = 5,572.72