Finding the Fourth Proportional to 144,620.03, 199,573.43 and 80,960.10

Step by Step Solution

1. Step 1: Write the proportion equation
   144,620.03 : 199,573.43 = 80,960.10 : x
2. Step 2: Convert to fraction form
   144,620.03/199,573.43 = 80,960.10/x
3. Step 3: Cross multiply
   144,620.03x = 199,573.43 × 80,960.10
4. Step 4: Simplify right side
   144,620.03x = 16,157,484,445.34
5. Step 5: Solve for x
   x = 16,157,484,445.34/144,620.03
6. Step 6: Final answer
   x = 111,723.70