Finding the Fourth Proportional to 67,680.80, 93,399.68 and 37,468.20

Step by Step Solution

1. Step 1: Write the proportion equation
   67,680.80 : 93,399.68 = 37,468.20 : x
2. Step 2: Convert to fraction form
   67,680.80/93,399.68 = 37,468.20/x
3. Step 3: Cross multiply
   67,680.80x = 93,399.68 × 37,468.20
4. Step 4: Simplify right side
   67,680.80x = 3,499,517,890.18
5. Step 5: Solve for x
   x = 3,499,517,890.18/67,680.80
6. Step 6: Final answer
   x = 51,706.21