Finding the Fourth Proportional to 12,411.06, 18,605.61 and 4,618.02

Step by Step Solution

1. Step 1: Write the proportion equation
   12,411.06 : 18,605.61 = 4,618.02 : x
2. Step 2: Convert to fraction form
   12,411.06/18,605.61 = 4,618.02/x
3. Step 3: Cross multiply
   12,411.06x = 18,605.61 × 4,618.02
4. Step 4: Simplify right side
   12,411.06x = 85,921,079.09
5. Step 5: Solve for x
   x = 85,921,079.09/12,411.06
6. Step 6: Final answer
   x = 6,922.94