Finding the Fourth Proportional to 72,306.22, 108,625.82 and 51,298.42

Step by Step Solution

1. Step 1: Write the proportion equation
   72,306.22 : 108,625.82 = 51,298.42 : x
2. Step 2: Convert to fraction form
   72,306.22/108,625.82 = 51,298.42/x
3. Step 3: Cross multiply
   72,306.22x = 108,625.82 × 51,298.42
4. Step 4: Simplify right side
   72,306.22x = 5,572,332,937.20
5. Step 5: Solve for x
   x = 5,572,332,937.20/72,306.22
6. Step 6: Final answer
   x = 77,065.75