Finding the Fourth Proportional to 12,199.33, 18,300.22 and 3,314.80

Step by Step Solution

1. Step 1: Write the proportion equation
   12,199.33 : 18,300.22 = 3,314.80 : x
2. Step 2: Convert to fraction form
   12,199.33/18,300.22 = 3,314.80/x
3. Step 3: Cross multiply
   12,199.33x = 18,300.22 × 3,314.80
4. Step 4: Simplify right side
   12,199.33x = 60,661,569.26
5. Step 5: Solve for x
   x = 60,661,569.26/12,199.33
6. Step 6: Final answer
   x = 4,972.53