Finding the Fourth Proportional to 12,072.61, 18,111.48 and 3,752.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,072.61 : 18,111.48 = 3,752.42 : x
2. Step 2: Convert to fraction form
   12,072.61/18,111.48 = 3,752.42/x
3. Step 3: Cross multiply
   12,072.61x = 18,111.48 × 3,752.42
4. Step 4: Simplify right side
   12,072.61x = 67,961,861.02
5. Step 5: Solve for x
   x = 67,961,861.02/12,072.61
6. Step 6: Final answer
   x = 5,629.43