Finding the Fourth Proportional to 12,042.64, 18,065.91 and 3,720.71

Step by Step Solution

1. Step 1: Write the proportion equation
   12,042.64 : 18,065.91 = 3,720.71 : x
2. Step 2: Convert to fraction form
   12,042.64/18,065.91 = 3,720.71/x
3. Step 3: Cross multiply
   12,042.64x = 18,065.91 × 3,720.71
4. Step 4: Simplify right side
   12,042.64x = 67,218,012.00
5. Step 5: Solve for x
   x = 67,218,012.00/12,042.64
6. Step 6: Final answer
   x = 5,581.67