Finding the Fourth Proportional to 22,459.37, 30,994.16 and 12,388.18

Step by Step Solution

1. Step 1: Write the proportion equation
   22,459.37 : 30,994.16 = 12,388.18 : x
2. Step 2: Convert to fraction form
   22,459.37/30,994.16 = 12,388.18/x
3. Step 3: Cross multiply
   22,459.37x = 30,994.16 × 12,388.18
4. Step 4: Simplify right side
   22,459.37x = 383,961,125.55
5. Step 5: Solve for x
   x = 383,961,125.55/22,459.37
6. Step 6: Final answer
   x = 17,095.81