Finding the Fourth Proportional to 78,848.64, 108,786.24 and 50,569.92

Step by Step Solution

1. Step 1: Write the proportion equation
   78,848.64 : 108,786.24 = 50,569.92 : x
2. Step 2: Convert to fraction form
   78,848.64/108,786.24 = 50,569.92/x
3. Step 3: Cross multiply
   78,848.64x = 108,786.24 × 50,569.92
4. Step 4: Simplify right side
   78,848.64x = 5,501,311,453.90
5. Step 5: Solve for x
   x = 5,501,311,453.90/78,848.64
6. Step 6: Final answer
   x = 69,770.53