Finding the Fourth Proportional to 9,317.28, 12,857.82 and 5,125.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,317.28 : 12,857.82 = 5,125.50 : x
2. Step 2: Convert to fraction form
   9,317.28/12,857.82 = 5,125.50/x
3. Step 3: Cross multiply
   9,317.28x = 12,857.82 × 5,125.50
4. Step 4: Simplify right side
   9,317.28x = 65,902,756.41
5. Step 5: Solve for x
   x = 65,902,756.41/9,317.28
6. Step 6: Final answer
   x = 7,073.18