Finding the Fourth Proportional to 144,870.15, 199,941.31 and 80,353.65

Step by Step Solution

1. Step 1: Write the proportion equation
   144,870.15 : 199,941.31 = 80,353.65 : x
2. Step 2: Convert to fraction form
   144,870.15/199,941.31 = 80,353.65/x
3. Step 3: Cross multiply
   144,870.15x = 199,941.31 × 80,353.65
4. Step 4: Simplify right side
   144,870.15x = 16,066,014,044.28
5. Step 5: Solve for x
   x = 16,066,014,044.28/144,870.15
6. Step 6: Final answer
   x = 110,899.41