Finding the Fourth Proportional to 79,766.25, 110,078.79 and 51,521.15

Step by Step Solution

1. Step 1: Write the proportion equation
   79,766.25 : 110,078.79 = 51,521.15 : x
2. Step 2: Convert to fraction form
   79,766.25/110,078.79 = 51,521.15/x
3. Step 3: Cross multiply
   79,766.25x = 110,078.79 × 51,521.15
4. Step 4: Simplify right side
   79,766.25x = 5,671,385,301.01
5. Step 5: Solve for x
   x = 5,671,385,301.01/79,766.25
6. Step 6: Final answer
   x = 71,100.06