Finding the Fourth Proportional to 9,834.98, 13,571.80 and 5,358.71

Step by Step Solution

1. Step 1: Write the proportion equation
   9,834.98 : 13,571.80 = 5,358.71 : x
2. Step 2: Convert to fraction form
   9,834.98/13,571.80 = 5,358.71/x
3. Step 3: Cross multiply
   9,834.98x = 13,571.80 × 5,358.71
4. Step 4: Simplify right side
   9,834.98x = 72,727,340.38
5. Step 5: Solve for x
   x = 72,727,340.38/9,834.98
6. Step 6: Final answer
   x = 7,394.76