Finding the Fourth Proportional to 9,401.49, 12,973.50 and 5,151.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,401.49 : 12,973.50 = 5,151.72 : x
2. Step 2: Convert to fraction form
   9,401.49/12,973.50 = 5,151.72/x
3. Step 3: Cross multiply
   9,401.49x = 12,973.50 × 5,151.72
4. Step 4: Simplify right side
   9,401.49x = 66,835,839.42
5. Step 5: Solve for x
   x = 66,835,839.42/9,401.49
6. Step 6: Final answer
   x = 7,109.07