Finding the Fourth Proportional to 14,227.56, 21,339.72 and 3,840.12

Step by Step Solution

1. Step 1: Write the proportion equation
   14,227.56 : 21,339.72 = 3,840.12 : x
2. Step 2: Convert to fraction form
   14,227.56/21,339.72 = 3,840.12/x
3. Step 3: Cross multiply
   14,227.56x = 21,339.72 × 3,840.12
4. Step 4: Simplify right side
   14,227.56x = 81,947,085.57
5. Step 5: Solve for x
   x = 81,947,085.57/14,227.56
6. Step 6: Final answer
   x = 5,759.74