Finding the Fourth Proportional to 99,994.57, 137,992.59 and 54,671.83

Step by Step Solution

1. Step 1: Write the proportion equation
   99,994.57 : 137,992.59 = 54,671.83 : x
2. Step 2: Convert to fraction form
   99,994.57/137,992.59 = 54,671.83/x
3. Step 3: Cross multiply
   99,994.57x = 137,992.59 × 54,671.83
4. Step 4: Simplify right side
   99,994.57x = 7,544,307,076.76
5. Step 5: Solve for x
   x = 7,544,307,076.76/99,994.57
6. Step 6: Final answer
   x = 75,447.17