Finding the Fourth Proportional to 87,719.39, 121,054.06 and 49,480.76

Step by Step Solution

1. Step 1: Write the proportion equation
   87,719.39 : 121,054.06 = 49,480.76 : x
2. Step 2: Convert to fraction form
   87,719.39/121,054.06 = 49,480.76/x
3. Step 3: Cross multiply
   87,719.39x = 121,054.06 × 49,480.76
4. Step 4: Simplify right side
   87,719.39x = 5,989,846,889.89
5. Step 5: Solve for x
   x = 5,989,846,889.89/87,719.39
6. Step 6: Final answer
   x = 68,284.18