Finding the Fourth Proportional to 12,002.13, 18,004.71 and 4,106.18

Step by Step Solution

1. Step 1: Write the proportion equation
   12,002.13 : 18,004.71 = 4,106.18 : x
2. Step 2: Convert to fraction form
   12,002.13/18,004.71 = 4,106.18/x
3. Step 3: Cross multiply
   12,002.13x = 18,004.71 × 4,106.18
4. Step 4: Simplify right side
   12,002.13x = 73,930,490.08
5. Step 5: Solve for x
   x = 73,930,490.08/12,002.13
6. Step 6: Final answer
   x = 6,159.78