Finding the Fourth Proportional to 8,698.03, 12,003.26 and 5,164.15

Step by Step Solution

1. Step 1: Write the proportion equation
   8,698.03 : 12,003.26 = 5,164.15 : x
2. Step 2: Convert to fraction form
   8,698.03/12,003.26 = 5,164.15/x
3. Step 3: Cross multiply
   8,698.03x = 12,003.26 × 5,164.15
4. Step 4: Simplify right side
   8,698.03x = 61,986,609.31
5. Step 5: Solve for x
   x = 61,986,609.31/8,698.03
6. Step 6: Final answer
   x = 7,126.51