Finding the Fourth Proportional to 12,330.62, 18,498.69 and 3,566.21

Step by Step Solution

1. Step 1: Write the proportion equation
   12,330.62 : 18,498.69 = 3,566.21 : x
2. Step 2: Convert to fraction form
   12,330.62/18,498.69 = 3,566.21/x
3. Step 3: Cross multiply
   12,330.62x = 18,498.69 × 3,566.21
4. Step 4: Simplify right side
   12,330.62x = 65,970,259.51
5. Step 5: Solve for x
   x = 65,970,259.51/12,330.62
6. Step 6: Final answer
   x = 5,350.12