Finding the Fourth Proportional to 144,479, 199,389.86 and 80,821.08

Step by Step Solution

1. Step 1: Write the proportion equation
   144,479 : 199,389.86 = 80,821.08 : x
2. Step 2: Convert to fraction form
   144,479/199,389.86 = 80,821.08/x
3. Step 3: Cross multiply
   144,479x = 199,389.86 × 80,821.08
4. Step 4: Simplify right side
   144,479x = 16,114,903,826.25
5. Step 5: Solve for x
   x = 16,114,903,826.25/144,479
6. Step 6: Final answer
   x = 111,538.04