Finding the Fourth Proportional to 22,156.35, 30,575.28 and 12,084.90

Step by Step Solution

1. Step 1: Write the proportion equation
   22,156.35 : 30,575.28 = 12,084.90 : x
2. Step 2: Convert to fraction form
   22,156.35/30,575.28 = 12,084.90/x
3. Step 3: Cross multiply
   22,156.35x = 30,575.28 × 12,084.90
4. Step 4: Simplify right side
   22,156.35x = 369,499,201.27
5. Step 5: Solve for x
   x = 369,499,201.27/22,156.35
6. Step 6: Final answer
   x = 16,676.90