Finding the Fourth Proportional to 79,173.05, 109,254.78 and 43,356.15

Step by Step Solution

1. Step 1: Write the proportion equation
   79,173.05 : 109,254.78 = 43,356.15 : x
2. Step 2: Convert to fraction form
   79,173.05/109,254.78 = 43,356.15/x
3. Step 3: Cross multiply
   79,173.05x = 109,254.78 × 43,356.15
4. Step 4: Simplify right side
   79,173.05x = 4,736,866,629.90
5. Step 5: Solve for x
   x = 4,736,866,629.90/79,173.05
6. Step 6: Final answer
   x = 59,829.28