Finding the Fourth Proportional to 12,002.11, 18,005.83 and 4,606.57

Step by Step Solution

1. Step 1: Write the proportion equation
   12,002.11 : 18,005.83 = 4,606.57 : x
2. Step 2: Convert to fraction form
   12,002.11/18,005.83 = 4,606.57/x
3. Step 3: Cross multiply
   12,002.11x = 18,005.83 × 4,606.57
4. Step 4: Simplify right side
   12,002.11x = 82,945,127.29
5. Step 5: Solve for x
   x = 82,945,127.29/12,002.11
6. Step 6: Final answer
   x = 6,910.88