Finding the Fourth Proportional to 79,149.57, 109,226.59 and 42,851.40

Step by Step Solution

1. Step 1: Write the proportion equation
   79,149.57 : 109,226.59 = 42,851.40 : x
2. Step 2: Convert to fraction form
   79,149.57/109,226.59 = 42,851.40/x
3. Step 3: Cross multiply
   79,149.57x = 109,226.59 × 42,851.40
4. Step 4: Simplify right side
   79,149.57x = 4,680,512,191.60
5. Step 5: Solve for x
   x = 4,680,512,191.60/79,149.57
6. Step 6: Final answer
   x = 59,135.03