Finding the Fourth Proportional to 56,928.05, 78,582.86 and 50,949.33

Step by Step Solution

1. Step 1: Write the proportion equation
   56,928.05 : 78,582.86 = 50,949.33 : x
2. Step 2: Convert to fraction form
   56,928.05/78,582.86 = 50,949.33/x
3. Step 3: Cross multiply
   56,928.05x = 78,582.86 × 50,949.33
4. Step 4: Simplify right side
   56,928.05x = 4,003,743,811.74
5. Step 5: Solve for x
   x = 4,003,743,811.74/56,928.05
6. Step 6: Final answer
   x = 70,329.90