Finding the Fourth Proportional to 72,514.74, 99,883.89 and 51,257.46

Step by Step Solution

1. Step 1: Write the proportion equation
   72,514.74 : 99,883.89 = 51,257.46 : x
2. Step 2: Convert to fraction form
   72,514.74/99,883.89 = 51,257.46/x
3. Step 3: Cross multiply
   72,514.74x = 99,883.89 × 51,257.46
4. Step 4: Simplify right side
   72,514.74x = 5,119,794,496.32
5. Step 5: Solve for x
   x = 5,119,794,496.32/72,514.74
6. Step 6: Final answer
   x = 70,603.50