Finding the Fourth Proportional to 9,442.18, 14,219.47 and 8,224.30

Step by Step Solution

1. Step 1: Write the proportion equation
   9,442.18 : 14,219.47 = 8,224.30 : x
2. Step 2: Convert to fraction form
   9,442.18/14,219.47 = 8,224.30/x
3. Step 3: Cross multiply
   9,442.18x = 14,219.47 × 8,224.30
4. Step 4: Simplify right side
   9,442.18x = 116,945,116.02
5. Step 5: Solve for x
   x = 116,945,116.02/9,442.18
6. Step 6: Final answer
   x = 12,385.40