Finding the Fourth Proportional to 22,459.91, 30,994.82 and 12,388.62

Step by Step Solution

1. Step 1: Write the proportion equation
   22,459.91 : 30,994.82 = 12,388.62 : x
2. Step 2: Convert to fraction form
   22,459.91/30,994.82 = 12,388.62/x
3. Step 3: Cross multiply
   22,459.91x = 30,994.82 × 12,388.62
4. Step 4: Simplify right side
   22,459.91x = 383,982,985.01
5. Step 5: Solve for x
   x = 383,982,985.01/22,459.91
6. Step 6: Final answer
   x = 17,096.38