Finding the Fourth Proportional to 39,798.72, 59,706.72 and 12,096

Step by Step Solution

1. Step 1: Write the proportion equation
   39,798.72 : 59,706.72 = 12,096 : x
2. Step 2: Convert to fraction form
   39,798.72/59,706.72 = 12,096/x
3. Step 3: Cross multiply
   39,798.72x = 59,706.72 × 12,096
4. Step 4: Simplify right side
   39,798.72x = 722,212,485.12
5. Step 5: Solve for x
   x = 722,212,485.12/39,798.72
6. Step 6: Final answer
   x = 18,146.63