Finding the Fourth Proportional to 72,336.90, 99,758.31 and 49,635.84

Step by Step Solution

1. Step 1: Write the proportion equation
   72,336.90 : 99,758.31 = 49,635.84 : x
2. Step 2: Convert to fraction form
   72,336.90/99,758.31 = 49,635.84/x
3. Step 3: Cross multiply
   72,336.90x = 99,758.31 × 49,635.84
4. Step 4: Simplify right side
   72,336.90x = 4,951,587,513.83
5. Step 5: Solve for x
   x = 4,951,587,513.83/72,336.90
6. Step 6: Final answer
   x = 68,451.75