Finding the Fourth Proportional to 22,333.96, 30,820.90 and 12,397.96

Step by Step Solution

1. Step 1: Write the proportion equation
   22,333.96 : 30,820.90 = 12,397.96 : x
2. Step 2: Convert to fraction form
   22,333.96/30,820.90 = 12,397.96/x
3. Step 3: Cross multiply
   22,333.96x = 30,820.90 × 12,397.96
4. Step 4: Simplify right side
   22,333.96x = 382,116,285.36
5. Step 5: Solve for x
   x = 382,116,285.36/22,333.96
6. Step 6: Final answer
   x = 17,109.20