Finding the Fourth Proportional to 12,354.72, 17,047.90 and 7,049.22

Step by Step Solution

1. Step 1: Write the proportion equation
   12,354.72 : 17,047.90 = 7,049.22 : x
2. Step 2: Convert to fraction form
   12,354.72/17,047.90 = 7,049.22/x
3. Step 3: Cross multiply
   12,354.72x = 17,047.90 × 7,049.22
4. Step 4: Simplify right side
   12,354.72x = 120,174,397.64
5. Step 5: Solve for x
   x = 120,174,397.64/12,354.72
6. Step 6: Final answer
   x = 9,727.00