Finding the Fourth Proportional to 14,675.56, 21,996.72 and 7,285.12

Step by Step Solution

1. Step 1: Write the proportion equation
   14,675.56 : 21,996.72 = 7,285.12 : x
2. Step 2: Convert to fraction form
   14,675.56/21,996.72 = 7,285.12/x
3. Step 3: Cross multiply
   14,675.56x = 21,996.72 × 7,285.12
4. Step 4: Simplify right side
   14,675.56x = 160,248,744.81
5. Step 5: Solve for x
   x = 160,248,744.81/14,675.56
6. Step 6: Final answer
   x = 10,919.43