Finding the Fourth Proportional to 144,738.32, 199,738.94 and 88,149.69

Step by Step Solution

1. Step 1: Write the proportion equation
   144,738.32 : 199,738.94 = 88,149.69 : x
2. Step 2: Convert to fraction form
   144,738.32/199,738.94 = 88,149.69/x
3. Step 3: Cross multiply
   144,738.32x = 199,738.94 × 88,149.69
4. Step 4: Simplify right side
   144,738.32x = 17,606,926,010.87
5. Step 5: Solve for x
   x = 17,606,926,010.87/144,738.32
6. Step 6: Final answer
   x = 121,646.61