Finding the Fourth Proportional to 8,564.31, 12,847.01 and 3,018.06

Step by Step Solution

1. Step 1: Write the proportion equation
   8,564.31 : 12,847.01 = 3,018.06 : x
2. Step 2: Convert to fraction form
   8,564.31/12,847.01 = 3,018.06/x
3. Step 3: Cross multiply
   8,564.31x = 12,847.01 × 3,018.06
4. Step 4: Simplify right side
   8,564.31x = 38,773,031.91
5. Step 5: Solve for x
   x = 38,773,031.91/8,564.31
6. Step 6: Final answer
   x = 4,527.28