Finding the Fourth Proportional to 12,160.52, 18,243.56 and 3,840.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,160.52 : 18,243.56 = 3,840.50 : x
2. Step 2: Convert to fraction form
   12,160.52/18,243.56 = 3,840.50/x
3. Step 3: Cross multiply
   12,160.52x = 18,243.56 × 3,840.50
4. Step 4: Simplify right side
   12,160.52x = 70,064,281.76
5. Step 5: Solve for x
   x = 70,064,281.76/12,160.52
6. Step 6: Final answer
   x = 5,761.62