Finding the Fourth Proportional to 12,085.52, 18,118.52 and 4,686.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,085.52 : 18,118.52 = 4,686.16 : x
2. Step 2: Convert to fraction form
   12,085.52/18,118.52 = 4,686.16/x
3. Step 3: Cross multiply
   12,085.52x = 18,118.52 × 4,686.16
4. Step 4: Simplify right side
   12,085.52x = 84,906,283.68
5. Step 5: Solve for x
   x = 84,906,283.68/12,085.52
6. Step 6: Final answer
   x = 7,025.46