Finding the Fourth Proportional to 12,069.73, 18,107.16 and 3,749.55

Step by Step Solution

1. Step 1: Write the proportion equation
   12,069.73 : 18,107.16 = 3,749.55 : x
2. Step 2: Convert to fraction form
   12,069.73/18,107.16 = 3,749.55/x
3. Step 3: Cross multiply
   12,069.73x = 18,107.16 × 3,749.55
4. Step 4: Simplify right side
   12,069.73x = 67,893,701.78
5. Step 5: Solve for x
   x = 67,893,701.78/12,069.73
6. Step 6: Final answer
   x = 5,625.12