Finding the Fourth Proportional to 14,167.56, 21,249.72 and 3,780.12

Step by Step Solution

1. Step 1: Write the proportion equation
   14,167.56 : 21,249.72 = 3,780.12 : x
2. Step 2: Convert to fraction form
   14,167.56/21,249.72 = 3,780.12/x
3. Step 3: Cross multiply
   14,167.56x = 21,249.72 × 3,780.12
4. Step 4: Simplify right side
   14,167.56x = 80,326,491.57
5. Step 5: Solve for x
   x = 80,326,491.57/14,167.56
6. Step 6: Final answer
   x = 5,669.75