Finding the Fourth Proportional to 9,429.27, 13,012.16 and 5,237.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,429.27 : 13,012.16 = 5,237.25 : x
2. Step 2: Convert to fraction form
   9,429.27/13,012.16 = 5,237.25/x
3. Step 3: Cross multiply
   9,429.27x = 13,012.16 × 5,237.25
4. Step 4: Simplify right side
   9,429.27x = 68,147,908.77
5. Step 5: Solve for x
   x = 68,147,908.77/9,429.27
6. Step 6: Final answer
   x = 7,227.27