Finding the Fourth Proportional to 9,916.24, 13,684.83 and 5,440.17

Step by Step Solution

1. Step 1: Write the proportion equation
   9,916.24 : 13,684.83 = 5,440.17 : x
2. Step 2: Convert to fraction form
   9,916.24/13,684.83 = 5,440.17/x
3. Step 3: Cross multiply
   9,916.24x = 13,684.83 × 5,440.17
4. Step 4: Simplify right side
   9,916.24x = 74,447,801.62
5. Step 5: Solve for x
   x = 74,447,801.62/9,916.24
6. Step 6: Final answer
   x = 7,507.66