Finding the Fourth Proportional to 12,159.52, 18,243.63 and 3,840.01

Step by Step Solution

1. Step 1: Write the proportion equation
   12,159.52 : 18,243.63 = 3,840.01 : x
2. Step 2: Convert to fraction form
   12,159.52/18,243.63 = 3,840.01/x
3. Step 3: Cross multiply
   12,159.52x = 18,243.63 × 3,840.01
4. Step 4: Simplify right side
   12,159.52x = 70,055,676.03
5. Step 5: Solve for x
   x = 70,055,676.03/12,159.52
6. Step 6: Final answer
   x = 5,761.39