Finding the Fourth Proportional to 12,073.72, 18,108.12 and 3,307.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,073.72 : 18,108.12 = 3,307.96 : x
2. Step 2: Convert to fraction form
   12,073.72/18,108.12 = 3,307.96/x
3. Step 3: Cross multiply
   12,073.72x = 18,108.12 × 3,307.96
4. Step 4: Simplify right side
   12,073.72x = 59,900,936.64
5. Step 5: Solve for x
   x = 59,900,936.64/12,073.72
6. Step 6: Final answer
   x = 4,961.27