Finding the Fourth Proportional to 9,917.30, 13,685.89 and 5,441.07

Step by Step Solution

1. Step 1: Write the proportion equation
   9,917.30 : 13,685.89 = 5,441.07 : x
2. Step 2: Convert to fraction form
   9,917.30/13,685.89 = 5,441.07/x
3. Step 3: Cross multiply
   9,917.30x = 13,685.89 × 5,441.07
4. Step 4: Simplify right side
   9,917.30x = 74,465,952.55
5. Step 5: Solve for x
   x = 74,465,952.55/9,917.30
6. Step 6: Final answer
   x = 7,508.69