Finding the Fourth Proportional to 21,591.77, 32,392.04 and 9,111.83

Step by Step Solution

1. Step 1: Write the proportion equation
   21,591.77 : 32,392.04 = 9,111.83 : x
2. Step 2: Convert to fraction form
   21,591.77/32,392.04 = 9,111.83/x
3. Step 3: Cross multiply
   21,591.77x = 32,392.04 × 9,111.83
4. Step 4: Simplify right side
   21,591.77x = 295,150,554.31
5. Step 5: Solve for x
   x = 295,150,554.31/21,591.77
6. Step 6: Final answer
   x = 13,669.59