Finding the Fourth Proportional to 72,244,851.60, 99,697,960.39 and 39,205,101.05

Step by Step Solution

1. Step 1: Write the proportion equation
   72,244,851.60 : 99,697,960.39 = 39,205,101.05 : x
2. Step 2: Convert to fraction form
   72,244,851.60/99,697,960.39 = 39,205,101.05/x
3. Step 3: Cross multiply
   72,244,851.60x = 99,697,960.39 × 39,205,101.05
4. Step 4: Simplify right side
   72,244,851.60x = 3,908,668,611,568,847
5. Step 5: Solve for x
   x = 3,908,668,611,568,847/72,244,851.60
6. Step 6: Final answer
   x = 54,103,074.82