Finding the Fourth Proportional to 79,170.04, 109,254.82 and 42,871.88

Step by Step Solution

1. Step 1: Write the proportion equation
   79,170.04 : 109,254.82 = 42,871.88 : x
2. Step 2: Convert to fraction form
   79,170.04/109,254.82 = 42,871.88/x
3. Step 3: Cross multiply
   79,170.04x = 109,254.82 × 42,871.88
4. Step 4: Simplify right side
   79,170.04x = 4,683,959,532.46
5. Step 5: Solve for x
   x = 4,683,959,532.46/79,170.04
6. Step 6: Final answer
   x = 59,163.28