Finding the Fourth Proportional to 78,861.30, 108,800.64 and 50,582.58

Step by Step Solution

1. Step 1: Write the proportion equation
   78,861.30 : 108,800.64 = 50,582.58 : x
2. Step 2: Convert to fraction form
   78,861.30/108,800.64 = 50,582.58/x
3. Step 3: Cross multiply
   78,861.30x = 108,800.64 × 50,582.58
4. Step 4: Simplify right side
   78,861.30x = 5,503,417,076.85
5. Step 5: Solve for x
   x = 5,503,417,076.85/78,861.30
6. Step 6: Final answer
   x = 69,786.03