Finding the Fourth Proportional to 79,102.72, 109,114.32 and 52,245.28

Step by Step Solution

1. Step 1: Write the proportion equation
   79,102.72 : 109,114.32 = 52,245.28 : x
2. Step 2: Convert to fraction form
   79,102.72/109,114.32 = 52,245.28/x
3. Step 3: Cross multiply
   79,102.72x = 109,114.32 × 52,245.28
4. Step 4: Simplify right side
   79,102.72x = 5,700,708,200.41
5. Step 5: Solve for x
   x = 5,700,708,200.41/79,102.72
6. Step 6: Final answer
   x = 72,067.16