Finding the Fourth Proportional to 144,518.52, 199,435.56 and 80,871.28

Step by Step Solution

1. Step 1: Write the proportion equation
   144,518.52 : 199,435.56 = 80,871.28 : x
2. Step 2: Convert to fraction form
   144,518.52/199,435.56 = 80,871.28/x
3. Step 3: Cross multiply
   144,518.52x = 199,435.56 × 80,871.28
4. Step 4: Simplify right side
   144,518.52x = 16,128,609,014.72
5. Step 5: Solve for x
   x = 16,128,609,014.72/144,518.52
6. Step 6: Final answer
   x = 111,602.37