Finding the Fourth Proportional to 9,811.47, 13,539.33 and 5,335.07

Step by Step Solution

1. Step 1: Write the proportion equation
   9,811.47 : 13,539.33 = 5,335.07 : x
2. Step 2: Convert to fraction form
   9,811.47/13,539.33 = 5,335.07/x
3. Step 3: Cross multiply
   9,811.47x = 13,539.33 × 5,335.07
4. Step 4: Simplify right side
   9,811.47x = 72,233,205.61
5. Step 5: Solve for x
   x = 72,233,205.61/9,811.47
6. Step 6: Final answer
   x = 7,362.12