Finding the Fourth Proportional to 13,940.01, 19,245.89 and 9,689.73

Step by Step Solution

1. Step 1: Write the proportion equation
   13,940.01 : 19,245.89 = 9,689.73 : x
2. Step 2: Convert to fraction form
   13,940.01/19,245.89 = 9,689.73/x
3. Step 3: Cross multiply
   13,940.01x = 19,245.89 × 9,689.73
4. Step 4: Simplify right side
   13,940.01x = 186,487,477.71
5. Step 5: Solve for x
   x = 186,487,477.71/13,940.01
6. Step 6: Final answer
   x = 13,377.86