Finding the Fourth Proportional to 12,514.90, 18,777.59 and 5,491.29

Step by Step Solution

1. Step 1: Write the proportion equation
   12,514.90 : 18,777.59 = 5,491.29 : x
2. Step 2: Convert to fraction form
   12,514.90/18,777.59 = 5,491.29/x
3. Step 3: Cross multiply
   12,514.90x = 18,777.59 × 5,491.29
4. Step 4: Simplify right side
   12,514.90x = 103,113,164.73
5. Step 5: Solve for x
   x = 103,113,164.73/12,514.90
6. Step 6: Final answer
   x = 8,239.23