Finding the Fourth Proportional to 22,453.16, 30,985.58 and 12,381.96

Step by Step Solution

1. Step 1: Write the proportion equation
   22,453.16 : 30,985.58 = 12,381.96 : x
2. Step 2: Convert to fraction form
   22,453.16/30,985.58 = 12,381.96/x
3. Step 3: Cross multiply
   22,453.16x = 30,985.58 × 12,381.96
4. Step 4: Simplify right side
   22,453.16x = 383,662,212.14
5. Step 5: Solve for x
   x = 383,662,212.14/22,453.16
6. Step 6: Final answer
   x = 17,087.23