Finding the Fourth Proportional to 12,224.45, 18,335.15 and 3,905.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,224.45 : 18,335.15 = 3,905.34 : x
2. Step 2: Convert to fraction form
   12,224.45/18,335.15 = 3,905.34/x
3. Step 3: Cross multiply
   12,224.45x = 18,335.15 × 3,905.34
4. Step 4: Simplify right side
   12,224.45x = 71,604,975.17
5. Step 5: Solve for x
   x = 71,604,975.17/12,224.45
6. Step 6: Final answer
   x = 5,857.52