Finding the Fourth Proportional to 10,988.33, 16,485.47 and 3,591.81

Step by Step Solution

1. Step 1: Write the proportion equation
   10,988.33 : 16,485.47 = 3,591.81 : x
2. Step 2: Convert to fraction form
   10,988.33/16,485.47 = 3,591.81/x
3. Step 3: Cross multiply
   10,988.33x = 16,485.47 × 3,591.81
4. Step 4: Simplify right side
   10,988.33x = 59,212,658.04
5. Step 5: Solve for x
   x = 59,212,658.04/10,988.33
6. Step 6: Final answer
   x = 5,388.69