Finding the Fourth Proportional to 22,421.21, 30,941.48 and 12,349.69

Step by Step Solution

1. Step 1: Write the proportion equation
   22,421.21 : 30,941.48 = 12,349.69 : x
2. Step 2: Convert to fraction form
   22,421.21/30,941.48 = 12,349.69/x
3. Step 3: Cross multiply
   22,421.21x = 30,941.48 × 12,349.69
4. Step 4: Simplify right side
   22,421.21x = 382,117,755.69
5. Step 5: Solve for x
   x = 382,117,755.69/22,421.21
6. Step 6: Final answer
   x = 17,042.69