Finding the Fourth Proportional to 12,289.59, 18,434.52 and 5,714.01

Step by Step Solution

1. Step 1: Write the proportion equation
   12,289.59 : 18,434.52 = 5,714.01 : x
2. Step 2: Convert to fraction form
   12,289.59/18,434.52 = 5,714.01/x
3. Step 3: Cross multiply
   12,289.59x = 18,434.52 × 5,714.01
4. Step 4: Simplify right side
   12,289.59x = 105,335,031.63
5. Step 5: Solve for x
   x = 105,335,031.63/12,289.59
6. Step 6: Final answer
   x = 8,571.08