Finding the Fourth Proportional to 10,991.73, 16,475.99 and 3,594.21

Step by Step Solution

1. Step 1: Write the proportion equation
   10,991.73 : 16,475.99 = 3,594.21 : x
2. Step 2: Convert to fraction form
   10,991.73/16,475.99 = 3,594.21/x
3. Step 3: Cross multiply
   10,991.73x = 16,475.99 × 3,594.21
4. Step 4: Simplify right side
   10,991.73x = 59,218,150.05
5. Step 5: Solve for x
   x = 59,218,150.05/10,991.73
6. Step 6: Final answer
   x = 5,387.52