Finding the Fourth Proportional to 87,078.88, 120,196.20 and 49,378.24

Step by Step Solution

1. Step 1: Write the proportion equation
   87,078.88 : 120,196.20 = 49,378.24 : x
2. Step 2: Convert to fraction form
   87,078.88/120,196.20 = 49,378.24/x
3. Step 3: Cross multiply
   87,078.88x = 120,196.20 × 49,378.24
4. Step 4: Simplify right side
   87,078.88x = 5,935,076,810.69
5. Step 5: Solve for x
   x = 5,935,076,810.69/87,078.88
6. Step 6: Final answer
   x = 68,157.48