Finding the Fourth Proportional to 12,074.64, 18,108.96 and 3,309.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,074.64 : 18,108.96 = 3,309.12 : x
2. Step 2: Convert to fraction form
   12,074.64/18,108.96 = 3,309.12/x
3. Step 3: Cross multiply
   12,074.64x = 18,108.96 × 3,309.12
4. Step 4: Simplify right side
   12,074.64x = 59,924,721.72
5. Step 5: Solve for x
   x = 59,924,721.72/12,074.64
6. Step 6: Final answer
   x = 4,962.86