Finding the Fourth Proportional to 12,042.12, 18,056.22 and 3,719.91

Step by Step Solution

1. Step 1: Write the proportion equation
   12,042.12 : 18,056.22 = 3,719.91 : x
2. Step 2: Convert to fraction form
   12,042.12/18,056.22 = 3,719.91/x
3. Step 3: Cross multiply
   12,042.12x = 18,056.22 × 3,719.91
4. Step 4: Simplify right side
   12,042.12x = 67,167,513.34
5. Step 5: Solve for x
   x = 67,167,513.34/12,042.12
6. Step 6: Final answer
   x = 5,577.71