Finding the Fourth Proportional to 52,789.56, 79,108.56 and 31,738.20

Step by Step Solution

1. Step 1: Write the proportion equation
   52,789.56 : 79,108.56 = 31,738.20 : x
2. Step 2: Convert to fraction form
   52,789.56/79,108.56 = 31,738.20/x
3. Step 3: Cross multiply
   52,789.56x = 79,108.56 × 31,738.20
4. Step 4: Simplify right side
   52,789.56x = 2,510,763,298.99
5. Step 5: Solve for x
   x = 2,510,763,298.99/52,789.56
6. Step 6: Final answer
   x = 47,561.74