Finding the Fourth Proportional to 12,149.58, 18,218.06 and 5,570.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,149.58 : 18,218.06 = 5,570.10 : x
2. Step 2: Convert to fraction form
   12,149.58/18,218.06 = 5,570.10/x
3. Step 3: Cross multiply
   12,149.58x = 18,218.06 × 5,570.10
4. Step 4: Simplify right side
   12,149.58x = 101,476,416.01
5. Step 5: Solve for x
   x = 101,476,416.01/12,149.58
6. Step 6: Final answer
   x = 8,352.26