Finding the Fourth Proportional to 131,179.99, 196,603.90 and 83,776.77

Step by Step Solution

1. Step 1: Write the proportion equation
   131,179.99 : 196,603.90 = 83,776.77 : x
2. Step 2: Convert to fraction form
   131,179.99/196,603.90 = 83,776.77/x
3. Step 3: Cross multiply
   131,179.99x = 196,603.90 × 83,776.77
4. Step 4: Simplify right side
   131,179.99x = 16,470,838,309.50
5. Step 5: Solve for x
   x = 16,470,838,309.50/131,179.99
6. Step 6: Final answer
   x = 125,559.08