Finding the Fourth Proportional to 9,811.52, 13,539.83 and 5,335.27

Step by Step Solution

1. Step 1: Write the proportion equation
   9,811.52 : 13,539.83 = 5,335.27 : x
2. Step 2: Convert to fraction form
   9,811.52/13,539.83 = 5,335.27/x
3. Step 3: Cross multiply
   9,811.52x = 13,539.83 × 5,335.27
4. Step 4: Simplify right side
   9,811.52x = 72,238,648.80
5. Step 5: Solve for x
   x = 72,238,648.80/9,811.52
6. Step 6: Final answer
   x = 7,362.64