Finding the Fourth Proportional to 99,579.27, 149,291.15 and 67,910.83

Step by Step Solution

1. Step 1: Write the proportion equation
   99,579.27 : 149,291.15 = 67,910.83 : x
2. Step 2: Convert to fraction form
   99,579.27/149,291.15 = 67,910.83/x
3. Step 3: Cross multiply
   99,579.27x = 149,291.15 × 67,910.83
4. Step 4: Simplify right side
   99,579.27x = 10,138,485,997.25
5. Step 5: Solve for x
   x = 10,138,485,997.25/99,579.27
6. Step 6: Final answer
   x = 101,813.21