Finding the Fourth Proportional to 12,866.72, 19,285.44 and 5,466.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,866.72 : 19,285.44 = 5,466.56 : x
2. Step 2: Convert to fraction form
   12,866.72/19,285.44 = 5,466.56/x
3. Step 3: Cross multiply
   12,866.72x = 19,285.44 × 5,466.56
4. Step 4: Simplify right side
   12,866.72x = 105,425,014.89
5. Step 5: Solve for x
   x = 105,425,014.89/12,866.72
6. Step 6: Final answer
   x = 8,193.62