Finding the Fourth Proportional to 78,797, 108,739.86 and 50,502.69

Step by Step Solution

1. Step 1: Write the proportion equation
   78,797 : 108,739.86 = 50,502.69 : x
2. Step 2: Convert to fraction form
   78,797/108,739.86 = 50,502.69/x
3. Step 3: Cross multiply
   78,797x = 108,739.86 × 50,502.69
4. Step 4: Simplify right side
   78,797x = 5,491,655,440.22
5. Step 5: Solve for x
   x = 5,491,655,440.22/78,797
6. Step 6: Final answer
   x = 69,693.71