Finding the Fourth Proportional to 12,053.50, 18,078.42 and 3,289.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,053.50 : 18,078.42 = 3,289.10 : x
2. Step 2: Convert to fraction form
   12,053.50/18,078.42 = 3,289.10/x
3. Step 3: Cross multiply
   12,053.50x = 18,078.42 × 3,289.10
4. Step 4: Simplify right side
   12,053.50x = 59,461,731.22
5. Step 5: Solve for x
   x = 59,461,731.22/12,053.50
6. Step 6: Final answer
   x = 4,933.15