Finding the Fourth Proportional to 12,123.96, 18,180.72 and 4,727.04

Step by Step Solution

1. Step 1: Write the proportion equation
   12,123.96 : 18,180.72 = 4,727.04 : x
2. Step 2: Convert to fraction form
   12,123.96/18,180.72 = 4,727.04/x
3. Step 3: Cross multiply
   12,123.96x = 18,180.72 × 4,727.04
4. Step 4: Simplify right side
   12,123.96x = 85,940,990.67
5. Step 5: Solve for x
   x = 85,940,990.67/12,123.96
6. Step 6: Final answer
   x = 7,088.52