Finding the Fourth Proportional to 67,242.62, 100,879.72 and 37,680.86

Step by Step Solution

1. Step 1: Write the proportion equation
   67,242.62 : 100,879.72 = 37,680.86 : x
2. Step 2: Convert to fraction form
   67,242.62/100,879.72 = 37,680.86/x
3. Step 3: Cross multiply
   67,242.62x = 100,879.72 × 37,680.86
4. Step 4: Simplify right side
   67,242.62x = 3,801,234,007.56
5. Step 5: Solve for x
   x = 3,801,234,007.56/67,242.62
6. Step 6: Final answer
   x = 56,530.13