Finding the Fourth Proportional to 9,834.01, 13,571.01 and 5,357.78

Step by Step Solution

1. Step 1: Write the proportion equation
   9,834.01 : 13,571.01 = 5,357.78 : x
2. Step 2: Convert to fraction form
   9,834.01/13,571.01 = 5,357.78/x
3. Step 3: Cross multiply
   9,834.01x = 13,571.01 × 5,357.78
4. Step 4: Simplify right side
   9,834.01x = 72,710,485.96
5. Step 5: Solve for x
   x = 72,710,485.96/9,834.01
6. Step 6: Final answer
   x = 7,393.78