Finding the Fourth Proportional to 72,466.31, 99,969.48 and 51,257.27

Step by Step Solution

1. Step 1: Write the proportion equation
   72,466.31 : 99,969.48 = 51,257.27 : x
2. Step 2: Convert to fraction form
   72,466.31/99,969.48 = 51,257.27/x
3. Step 3: Cross multiply
   72,466.31x = 99,969.48 × 51,257.27
4. Step 4: Simplify right side
   72,466.31x = 5,124,162,878.04
5. Step 5: Solve for x
   x = 5,124,162,878.04/72,466.31
6. Step 6: Final answer
   x = 70,710.96