Finding the Fourth Proportional to 108,685.46, 163,028.74 and 49,479.72

Step by Step Solution

1. Step 1: Write the proportion equation
   108,685.46 : 163,028.74 = 49,479.72 : x
2. Step 2: Convert to fraction form
   108,685.46/163,028.74 = 49,479.72/x
3. Step 3: Cross multiply
   108,685.46x = 163,028.74 × 49,479.72
4. Step 4: Simplify right side
   108,685.46x = 8,066,616,407.15
5. Step 5: Solve for x
   x = 8,066,616,407.15/108,685.46
6. Step 6: Final answer
   x = 74,219.83