Finding the Fourth Proportional to 12,074.72, 18,109.62 and 3,308.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,074.72 : 18,109.62 = 3,308.96 : x
2. Step 2: Convert to fraction form
   12,074.72/18,109.62 = 3,308.96/x
3. Step 3: Cross multiply
   12,074.72x = 18,109.62 × 3,308.96
4. Step 4: Simplify right side
   12,074.72x = 59,924,008.20
5. Step 5: Solve for x
   x = 59,924,008.20/12,074.72
6. Step 6: Final answer
   x = 4,962.77