Finding the Fourth Proportional to 12,085.52, 18,123.44 and 3,762.80

Step by Step Solution

1. Step 1: Write the proportion equation
   12,085.52 : 18,123.44 = 3,762.80 : x
2. Step 2: Convert to fraction form
   12,085.52/18,123.44 = 3,762.80/x
3. Step 3: Cross multiply
   12,085.52x = 18,123.44 × 3,762.80
4. Step 4: Simplify right side
   12,085.52x = 68,194,880.03
5. Step 5: Solve for x
   x = 68,194,880.03/12,085.52
6. Step 6: Final answer
   x = 5,642.69