Finding the Fourth Proportional to 67,940.86, 101,872.41 and 28,464.70

Step by Step Solution

1. Step 1: Write the proportion equation
   67,940.86 : 101,872.41 = 28,464.70 : x
2. Step 2: Convert to fraction form
   67,940.86/101,872.41 = 28,464.70/x
3. Step 3: Cross multiply
   67,940.86x = 101,872.41 × 28,464.70
4. Step 4: Simplify right side
   67,940.86x = 2,899,767,588.93
5. Step 5: Solve for x
   x = 2,899,767,588.93/67,940.86
6. Step 6: Final answer
   x = 42,680.76