Finding the Fourth Proportional to 144,634.68, 199,561.50 and 84,168.72

Step by Step Solution

1. Step 1: Write the proportion equation
   144,634.68 : 199,561.50 = 84,168.72 : x
2. Step 2: Convert to fraction form
   144,634.68/199,561.50 = 84,168.72/x
3. Step 3: Cross multiply
   144,634.68x = 199,561.50 × 84,168.72
4. Step 4: Simplify right side
   144,634.68x = 16,796,836,016.28
5. Step 5: Solve for x
   x = 16,796,836,016.28/144,634.68
6. Step 6: Final answer
   x = 116,132.84