Finding the Fourth Proportional to 52,404.20, 72,306.56 and 31,179.32

Step by Step Solution

1. Step 1: Write the proportion equation
   52,404.20 : 72,306.56 = 31,179.32 : x
2. Step 2: Convert to fraction form
   52,404.20/72,306.56 = 31,179.32/x
3. Step 3: Cross multiply
   52,404.20x = 72,306.56 × 31,179.32
4. Step 4: Simplify right side
   52,404.20x = 2,254,469,372.34
5. Step 5: Solve for x
   x = 2,254,469,372.34/52,404.20
6. Step 6: Final answer
   x = 43,020.78