Finding the Fourth Proportional to 12,109.44, 18,164.52 and 3,345

Step by Step Solution

1. Step 1: Write the proportion equation
   12,109.44 : 18,164.52 = 3,345 : x
2. Step 2: Convert to fraction form
   12,109.44/18,164.52 = 3,345/x
3. Step 3: Cross multiply
   12,109.44x = 18,164.52 × 3,345
4. Step 4: Simplify right side
   12,109.44x = 60,760,319.40
5. Step 5: Solve for x
   x = 60,760,319.40/12,109.44
6. Step 6: Final answer
   x = 5,017.60