Finding the Fourth Proportional to 67,581.32, 93,259.50 and 39,284.78

Step by Step Solution

1. Step 1: Write the proportion equation
   67,581.32 : 93,259.50 = 39,284.78 : x
2. Step 2: Convert to fraction form
   67,581.32/93,259.50 = 39,284.78/x
3. Step 3: Cross multiply
   67,581.32x = 93,259.50 × 39,284.78
4. Step 4: Simplify right side
   67,581.32x = 3,663,678,940.41
5. Step 5: Solve for x
   x = 3,663,678,940.41/67,581.32
6. Step 6: Final answer
   x = 54,211.41