Finding the Fourth Proportional to 10,301.72, 15,365.98 and 9,355.73

Step by Step Solution

1. Step 1: Write the proportion equation
   10,301.72 : 15,365.98 = 9,355.73 : x
2. Step 2: Convert to fraction form
   10,301.72/15,365.98 = 9,355.73/x
3. Step 3: Cross multiply
   10,301.72x = 15,365.98 × 9,355.73
4. Step 4: Simplify right side
   10,301.72x = 143,759,960.07
5. Step 5: Solve for x
   x = 143,759,960.07/10,301.72
6. Step 6: Final answer
   x = 13,954.95