Finding the Fourth Proportional to 12,222.81, 18,319.84 and 5,635.08

Step by Step Solution

1. Step 1: Write the proportion equation
   12,222.81 : 18,319.84 = 5,635.08 : x
2. Step 2: Convert to fraction form
   12,222.81/18,319.84 = 5,635.08/x
3. Step 3: Cross multiply
   12,222.81x = 18,319.84 × 5,635.08
4. Step 4: Simplify right side
   12,222.81x = 103,233,749.90
5. Step 5: Solve for x
   x = 103,233,749.90/12,222.81
6. Step 6: Final answer
   x = 8,445.99