Finding the Fourth Proportional to 9,825.39, 13,558.89 and 5,349.17

Step by Step Solution

1. Step 1: Write the proportion equation
   9,825.39 : 13,558.89 = 5,349.17 : x
2. Step 2: Convert to fraction form
   9,825.39/13,558.89 = 5,349.17/x
3. Step 3: Cross multiply
   9,825.39x = 13,558.89 × 5,349.17
4. Step 4: Simplify right side
   9,825.39x = 72,528,807.62
5. Step 5: Solve for x
   x = 72,528,807.62/9,825.39
6. Step 6: Final answer
   x = 7,381.78