Finding the Fourth Proportional to 12,693.69, 19,044.45 and 5,679.59

Step by Step Solution

1. Step 1: Write the proportion equation
   12,693.69 : 19,044.45 = 5,679.59 : x
2. Step 2: Convert to fraction form
   12,693.69/19,044.45 = 5,679.59/x
3. Step 3: Cross multiply
   12,693.69x = 19,044.45 × 5,679.59
4. Step 4: Simplify right side
   12,693.69x = 108,164,572.55
5. Step 5: Solve for x
   x = 108,164,572.55/12,693.69
6. Step 6: Final answer
   x = 8,521.13