Finding the Fourth Proportional to 10,606.72, 14,631.03 and 6,620.91

Step by Step Solution

1. Step 1: Write the proportion equation
   10,606.72 : 14,631.03 = 6,620.91 : x
2. Step 2: Convert to fraction form
   10,606.72/14,631.03 = 6,620.91/x
3. Step 3: Cross multiply
   10,606.72x = 14,631.03 × 6,620.91
4. Step 4: Simplify right side
   10,606.72x = 96,870,801.42
5. Step 5: Solve for x
   x = 96,870,801.42/10,606.72
6. Step 6: Final answer
   x = 9,132.96