Finding the Fourth Proportional to 52,493.78, 72,441.83 and 28,620.62

Step by Step Solution

1. Step 1: Write the proportion equation
   52,493.78 : 72,441.83 = 28,620.62 : x
2. Step 2: Convert to fraction form
   52,493.78/72,441.83 = 28,620.62/x
3. Step 3: Cross multiply
   52,493.78x = 72,441.83 × 28,620.62
4. Step 4: Simplify right side
   52,493.78x = 2,073,330,088.53
5. Step 5: Solve for x
   x = 2,073,330,088.53/52,493.78
6. Step 6: Final answer
   x = 39,496.68