Finding the Fourth Proportional to 79,759.88, 109,978.74 and 51,041.96

Step by Step Solution

1. Step 1: Write the proportion equation
   79,759.88 : 109,978.74 = 51,041.96 : x
2. Step 2: Convert to fraction form
   79,759.88/109,978.74 = 51,041.96/x
3. Step 3: Cross multiply
   79,759.88x = 109,978.74 × 51,041.96
4. Step 4: Simplify right side
   79,759.88x = 5,613,530,447.93
5. Step 5: Solve for x
   x = 5,613,530,447.93/79,759.88
6. Step 6: Final answer
   x = 70,380.38