Finding the Fourth Proportional to 22,452.89, 30,985.19 and 12,381.06

Step by Step Solution

1. Step 1: Write the proportion equation
   22,452.89 : 30,985.19 = 12,381.06 : x
2. Step 2: Convert to fraction form
   22,452.89/30,985.19 = 12,381.06/x
3. Step 3: Cross multiply
   22,452.89x = 30,985.19 × 12,381.06
4. Step 4: Simplify right side
   22,452.89x = 383,629,434.60
5. Step 5: Solve for x
   x = 383,629,434.60/22,452.89
6. Step 6: Final answer
   x = 17,085.98