Finding the Fourth Proportional to 8,698.53, 12,003.94 and 5,164.65

Step by Step Solution

1. Step 1: Write the proportion equation
   8,698.53 : 12,003.94 = 5,164.65 : x
2. Step 2: Convert to fraction form
   8,698.53/12,003.94 = 5,164.65/x
3. Step 3: Cross multiply
   8,698.53x = 12,003.94 × 5,164.65
4. Step 4: Simplify right side
   8,698.53x = 61,996,148.72
5. Step 5: Solve for x
   x = 61,996,148.72/8,698.53
6. Step 6: Final answer
   x = 7,127.20