Finding the Fourth Proportional to 79,315.88, 118,961.06 and 23,142.78

Step by Step Solution

1. Step 1: Write the proportion equation
   79,315.88 : 118,961.06 = 23,142.78 : x
2. Step 2: Convert to fraction form
   79,315.88/118,961.06 = 23,142.78/x
3. Step 3: Cross multiply
   79,315.88x = 118,961.06 × 23,142.78
4. Step 4: Simplify right side
   79,315.88x = 2,753,089,524.43
5. Step 5: Solve for x
   x = 2,753,089,524.43/79,315.88
6. Step 6: Final answer
   x = 34,710.45