Finding the Fourth Proportional to 79,161.34, 109,241.31 and 42,862.50

Step by Step Solution

1. Step 1: Write the proportion equation
   79,161.34 : 109,241.31 = 42,862.50 : x
2. Step 2: Convert to fraction form
   79,161.34/109,241.31 = 42,862.50/x
3. Step 3: Cross multiply
   79,161.34x = 109,241.31 × 42,862.50
4. Step 4: Simplify right side
   79,161.34x = 4,682,355,649.88
5. Step 5: Solve for x
   x = 4,682,355,649.88/79,161.34
6. Step 6: Final answer
   x = 59,149.52