Finding the Fourth Proportional to 14,155.56, 21,231.72 and 3,766.50

Step by Step Solution

1. Step 1: Write the proportion equation
   14,155.56 : 21,231.72 = 3,766.50 : x
2. Step 2: Convert to fraction form
   14,155.56/21,231.72 = 3,766.50/x
3. Step 3: Cross multiply
   14,155.56x = 21,231.72 × 3,766.50
4. Step 4: Simplify right side
   14,155.56x = 79,969,273.38
5. Step 5: Solve for x
   x = 79,969,273.38/14,155.56
6. Step 6: Final answer
   x = 5,649.32