Finding the Fourth Proportional to 8,698.74, 12,005.55 and 5,162.82

Step by Step Solution

1. Step 1: Write the proportion equation
   8,698.74 : 12,005.55 = 5,162.82 : x
2. Step 2: Convert to fraction form
   8,698.74/12,005.55 = 5,162.82/x
3. Step 3: Cross multiply
   8,698.74x = 12,005.55 × 5,162.82
4. Step 4: Simplify right side
   8,698.74x = 61,982,493.65
5. Step 5: Solve for x
   x = 61,982,493.65/8,698.74
6. Step 6: Final answer
   x = 7,125.46