Finding the Fourth Proportional to 9,940.25, 13,717.10 and 5,463.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,940.25 : 13,717.10 = 5,463.72 : x
2. Step 2: Convert to fraction form
   9,940.25/13,717.10 = 5,463.72/x
3. Step 3: Cross multiply
   9,940.25x = 13,717.10 × 5,463.72
4. Step 4: Simplify right side
   9,940.25x = 74,946,407.27
5. Step 5: Solve for x
   x = 74,946,407.27/9,940.25
6. Step 6: Final answer
   x = 7,539.69