Finding the Fourth Proportional to 78,856, 108,839.76 and 52,003.36

Step by Step Solution

1. Step 1: Write the proportion equation
   78,856 : 108,839.76 = 52,003.36 : x
2. Step 2: Convert to fraction form
   78,856/108,839.76 = 52,003.36/x
3. Step 3: Cross multiply
   78,856x = 108,839.76 × 52,003.36
4. Step 4: Simplify right side
   78,856x = 5,660,033,221.59
5. Step 5: Solve for x
   x = 5,660,033,221.59/78,856
6. Step 6: Final answer
   x = 71,776.82