Finding the Fourth Proportional to 8,701.80, 12,004.25 and 5,162.51

Step by Step Solution

1. Step 1: Write the proportion equation
   8,701.80 : 12,004.25 = 5,162.51 : x
2. Step 2: Convert to fraction form
   8,701.80/12,004.25 = 5,162.51/x
3. Step 3: Cross multiply
   8,701.80x = 12,004.25 × 5,162.51
4. Step 4: Simplify right side
   8,701.80x = 61,971,974.83
5. Step 5: Solve for x
   x = 61,971,974.83/8,701.80
6. Step 6: Final answer
   x = 7,121.74