Finding the Fourth Proportional to 49,016.30, 72,970.12 and 48,724.70

Step by Step Solution

1. Step 1: Write the proportion equation
   49,016.30 : 72,970.12 = 48,724.70 : x
2. Step 2: Convert to fraction form
   49,016.30/72,970.12 = 48,724.70/x
3. Step 3: Cross multiply
   49,016.30x = 72,970.12 × 48,724.70
4. Step 4: Simplify right side
   49,016.30x = 3,555,447,205.96
5. Step 5: Solve for x
   x = 3,555,447,205.96/49,016.30
6. Step 6: Final answer
   x = 72,536.02