Finding the Fourth Proportional to 87,499.76, 120,738.72 and 49,254.56

Step by Step Solution

1. Step 1: Write the proportion equation
   87,499.76 : 120,738.72 = 49,254.56 : x
2. Step 2: Convert to fraction form
   87,499.76/120,738.72 = 49,254.56/x
3. Step 3: Cross multiply
   87,499.76x = 120,738.72 × 49,254.56
4. Step 4: Simplify right side
   87,499.76x = 5,946,932,528.56
5. Step 5: Solve for x
   x = 5,946,932,528.56/87,499.76
6. Step 6: Final answer
   x = 67,965.13