Finding the Fourth Proportional to 14,245.56, 21,366.72 and 3,856.50

Step by Step Solution

1. Step 1: Write the proportion equation
   14,245.56 : 21,366.72 = 3,856.50 : x
2. Step 2: Convert to fraction form
   14,245.56/21,366.72 = 3,856.50/x
3. Step 3: Cross multiply
   14,245.56x = 21,366.72 × 3,856.50
4. Step 4: Simplify right side
   14,245.56x = 82,400,755.68
5. Step 5: Solve for x
   x = 82,400,755.68/14,245.56
6. Step 6: Final answer
   x = 5,784.31