Finding the Fourth Proportional to 67,853.76, 93,626.04 and 40,978.20

Step by Step Solution

1. Step 1: Write the proportion equation
   67,853.76 : 93,626.04 = 40,978.20 : x
2. Step 2: Convert to fraction form
   67,853.76/93,626.04 = 40,978.20/x
3. Step 3: Cross multiply
   67,853.76x = 93,626.04 × 40,978.20
4. Step 4: Simplify right side
   67,853.76x = 3,836,626,592.33
5. Step 5: Solve for x
   x = 3,836,626,592.33/67,853.76
6. Step 6: Final answer
   x = 56,542.58