Finding the Fourth Proportional to 191,081.66, 263,690.79 and 106,196.90

Step by Step Solution

1. Step 1: Write the proportion equation
   191,081.66 : 263,690.79 = 106,196.90 : x
2. Step 2: Convert to fraction form
   191,081.66/263,690.79 = 106,196.90/x
3. Step 3: Cross multiply
   191,081.66x = 263,690.79 × 106,196.90
4. Step 4: Simplify right side
   191,081.66x = 28,003,144,456.55
5. Step 5: Solve for x
   x = 28,003,144,456.55/191,081.66
6. Step 6: Final answer
   x = 146,550.67