Finding the Fourth Proportional to 16,767.72, 25,147.08 and 7,985.16

Step by Step Solution

1. Step 1: Write the proportion equation
   16,767.72 : 25,147.08 = 7,985.16 : x
2. Step 2: Convert to fraction form
   16,767.72/25,147.08 = 7,985.16/x
3. Step 3: Cross multiply
   16,767.72x = 25,147.08 × 7,985.16
4. Step 4: Simplify right side
   16,767.72x = 200,803,457.33
5. Step 5: Solve for x
   x = 200,803,457.33/16,767.72
6. Step 6: Final answer
   x = 11,975.60