Finding the Fourth Proportional to 144,820.03, 199,851.33 and 88,231.45

Step by Step Solution

1. Step 1: Write the proportion equation
   144,820.03 : 199,851.33 = 88,231.45 : x
2. Step 2: Convert to fraction form
   144,820.03/199,851.33 = 88,231.45/x
3. Step 3: Cross multiply
   144,820.03x = 199,851.33 × 88,231.45
4. Step 4: Simplify right side
   144,820.03x = 17,633,172,630.33
5. Step 5: Solve for x
   x = 17,633,172,630.33/144,820.03
6. Step 6: Final answer
   x = 121,759.21