Finding the Fourth Proportional to 79,475.37, 109,724.18 and 52,640.88

Step by Step Solution

1. Step 1: Write the proportion equation
   79,475.37 : 109,724.18 = 52,640.88 : x
2. Step 2: Convert to fraction form
   79,475.37/109,724.18 = 52,640.88/x
3. Step 3: Cross multiply
   79,475.37x = 109,724.18 × 52,640.88
4. Step 4: Simplify right side
   79,475.37x = 5,775,977,129.27
5. Step 5: Solve for x
   x = 5,775,977,129.27/79,475.37
6. Step 6: Final answer
   x = 72,676.32