Finding the Fourth Proportional to 10,991.52, 16,489.40 and 3,593.98

Step by Step Solution

1. Step 1: Write the proportion equation
   10,991.52 : 16,489.40 = 3,593.98 : x
2. Step 2: Convert to fraction form
   10,991.52/16,489.40 = 3,593.98/x
3. Step 3: Cross multiply
   10,991.52x = 16,489.40 × 3,593.98
4. Step 4: Simplify right side
   10,991.52x = 59,262,573.81
5. Step 5: Solve for x
   x = 59,262,573.81/10,991.52
6. Step 6: Final answer
   x = 5,391.66