Finding the Fourth Proportional to 72,103.54, 99,546.72 and 49,479.70

Step by Step Solution

1. Step 1: Write the proportion equation
   72,103.54 : 99,546.72 = 49,479.70 : x
2. Step 2: Convert to fraction form
   72,103.54/99,546.72 = 49,479.70/x
3. Step 3: Cross multiply
   72,103.54x = 99,546.72 × 49,479.70
4. Step 4: Simplify right side
   72,103.54x = 4,925,541,841.58
5. Step 5: Solve for x
   x = 4,925,541,841.58/72,103.54
6. Step 6: Final answer
   x = 68,312.07