Finding the Fourth Proportional to 144,536.27, 199,327.55 and 124,111.40

Step by Step Solution

1. Step 1: Write the proportion equation
   144,536.27 : 199,327.55 = 124,111.40 : x
2. Step 2: Convert to fraction form
   144,536.27/199,327.55 = 124,111.40/x
3. Step 3: Cross multiply
   144,536.27x = 199,327.55 × 124,111.40
4. Step 4: Simplify right side
   144,536.27x = 24,738,819,671.88
5. Step 5: Solve for x
   x = 24,738,819,671.88/144,536.27
6. Step 6: Final answer
   x = 171,159.95