Finding the Fourth Proportional to 10,397.89, 14,365.37 and 9,885.82

Step by Step Solution

1. Step 1: Write the proportion equation
   10,397.89 : 14,365.37 = 9,885.82 : x
2. Step 2: Convert to fraction form
   10,397.89/14,365.37 = 9,885.82/x
3. Step 3: Cross multiply
   10,397.89x = 14,365.37 × 9,885.82
4. Step 4: Simplify right side
   10,397.89x = 142,013,390.23
5. Step 5: Solve for x
   x = 142,013,390.23/10,397.89
6. Step 6: Final answer
   x = 13,657.91