Finding the Fourth Proportional to 124,877.58, 172,387.25 and 79,616.25

Step by Step Solution

1. Step 1: Write the proportion equation
   124,877.58 : 172,387.25 = 79,616.25 : x
2. Step 2: Convert to fraction form
   124,877.58/172,387.25 = 79,616.25/x
3. Step 3: Cross multiply
   124,877.58x = 172,387.25 × 79,616.25
4. Step 4: Simplify right side
   124,877.58x = 13,724,825,994.73
5. Step 5: Solve for x
   x = 13,724,825,994.73/124,877.58
6. Step 6: Final answer
   x = 109,906.25