Finding the Fourth Proportional to 12,042.90, 18,066.29 and 3,720.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,042.90 : 18,066.29 = 3,720.96 : x
2. Step 2: Convert to fraction form
   12,042.90/18,066.29 = 3,720.96/x
3. Step 3: Cross multiply
   12,042.90x = 18,066.29 × 3,720.96
4. Step 4: Simplify right side
   12,042.90x = 67,223,923.83
5. Step 5: Solve for x
   x = 67,223,923.83/12,042.90
6. Step 6: Final answer
   x = 5,582.04