Finding the Fourth Proportional to 140,581.86, 194,002.74 and 76,919.91

Step by Step Solution

1. Step 1: Write the proportion equation
   140,581.86 : 194,002.74 = 76,919.91 : x
2. Step 2: Convert to fraction form
   140,581.86/194,002.74 = 76,919.91/x
3. Step 3: Cross multiply
   140,581.86x = 194,002.74 × 76,919.91
4. Step 4: Simplify right side
   140,581.86x = 14,922,673,300.55
5. Step 5: Solve for x
   x = 14,922,673,300.55/140,581.86
6. Step 6: Final answer
   x = 106,149.35