Finding the Fourth Proportional to 10,630.89, 15,945.69 and 3,966.09

Step by Step Solution

1. Step 1: Write the proportion equation
   10,630.89 : 15,945.69 = 3,966.09 : x
2. Step 2: Convert to fraction form
   10,630.89/15,945.69 = 3,966.09/x
3. Step 3: Cross multiply
   10,630.89x = 15,945.69 × 3,966.09
4. Step 4: Simplify right side
   10,630.89x = 63,242,041.65
5. Step 5: Solve for x
   x = 63,242,041.65/10,630.89
6. Step 6: Final answer
   x = 5,948.89