Finding the Fourth Proportional to 78,796.13, 108,738.65 and 50,501.81

Step by Step Solution

1. Step 1: Write the proportion equation
   78,796.13 : 108,738.65 = 50,501.81 : x
2. Step 2: Convert to fraction form
   78,796.13/108,738.65 = 50,501.81/x
3. Step 3: Cross multiply
   78,796.13x = 108,738.65 × 50,501.81
4. Step 4: Simplify right side
   78,796.13x = 5,491,499,040.06
5. Step 5: Solve for x
   x = 5,491,499,040.06/78,796.13
6. Step 6: Final answer
   x = 69,692.50