Finding the Fourth Proportional to 144,494.31, 199,397.52 and 80,830.74

Step by Step Solution

1. Step 1: Write the proportion equation
   144,494.31 : 199,397.52 = 80,830.74 : x
2. Step 2: Convert to fraction form
   144,494.31/199,397.52 = 80,830.74/x
3. Step 3: Cross multiply
   144,494.31x = 199,397.52 × 80,830.74
4. Step 4: Simplify right side
   144,494.31x = 16,117,449,095.76
5. Step 5: Solve for x
   x = 16,117,449,095.76/144,494.31
6. Step 6: Final answer
   x = 111,543.83