Finding the Fourth Proportional to 10,469.72, 15,674.88 and 9,484.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,469.72 : 15,674.88 = 9,484.31 : x
2. Step 2: Convert to fraction form
   10,469.72/15,674.88 = 9,484.31/x
3. Step 3: Cross multiply
   10,469.72x = 15,674.88 × 9,484.31
4. Step 4: Simplify right side
   10,469.72x = 148,665,421.13
5. Step 5: Solve for x
   x = 148,665,421.13/10,469.72
6. Step 6: Final answer
   x = 14,199.56