Finding the Fourth Proportional to 72,982.96, 109,479.06 and 30,857.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,982.96 : 109,479.06 = 30,857.50 : x
2. Step 2: Convert to fraction form
   72,982.96/109,479.06 = 30,857.50/x
3. Step 3: Cross multiply
   72,982.96x = 109,479.06 × 30,857.50
4. Step 4: Simplify right side
   72,982.96x = 3,378,250,093.95
5. Step 5: Solve for x
   x = 3,378,250,093.95/72,982.96
6. Step 6: Final answer
   x = 46,288.20