Finding the Fourth Proportional to 143,725.67, 198,328.56 and 80,062.10

Step by Step Solution

1. Step 1: Write the proportion equation
   143,725.67 : 198,328.56 = 80,062.10 : x
2. Step 2: Convert to fraction form
   143,725.67/198,328.56 = 80,062.10/x
3. Step 3: Cross multiply
   143,725.67x = 198,328.56 × 80,062.10
4. Step 4: Simplify right side
   143,725.67x = 15,878,601,003.58
5. Step 5: Solve for x
   x = 15,878,601,003.58/143,725.67
6. Step 6: Final answer
   x = 110,478.53