Finding the Fourth Proportional to 67,077.48, 92,560.52 and 40,215

Step by Step Solution

1. Step 1: Write the proportion equation
   67,077.48 : 92,560.52 = 40,215 : x
2. Step 2: Convert to fraction form
   67,077.48/92,560.52 = 40,215/x
3. Step 3: Cross multiply
   67,077.48x = 92,560.52 × 40,215
4. Step 4: Simplify right side
   67,077.48x = 3,722,321,311.80
5. Step 5: Solve for x
   x = 3,722,321,311.80/67,077.48
6. Step 6: Final answer
   x = 55,492.86