Finding the Fourth Proportional to 12,069.23, 18,105.56 and 3,749.91

Step by Step Solution

1. Step 1: Write the proportion equation
   12,069.23 : 18,105.56 = 3,749.91 : x
2. Step 2: Convert to fraction form
   12,069.23/18,105.56 = 3,749.91/x
3. Step 3: Cross multiply
   12,069.23x = 18,105.56 × 3,749.91
4. Step 4: Simplify right side
   12,069.23x = 67,894,201.75
5. Step 5: Solve for x
   x = 67,894,201.75/12,069.23
6. Step 6: Final answer
   x = 5,625.40