Finding the Fourth Proportional to 21,640.89, 32,475.83 and 7,600.96

Step by Step Solution

1. Step 1: Write the proportion equation
   21,640.89 : 32,475.83 = 7,600.96 : x
2. Step 2: Convert to fraction form
   21,640.89/32,475.83 = 7,600.96/x
3. Step 3: Cross multiply
   21,640.89x = 32,475.83 × 7,600.96
4. Step 4: Simplify right side
   21,640.89x = 246,847,600.10
5. Step 5: Solve for x
   x = 246,847,600.10/21,640.89
6. Step 6: Final answer
   x = 11,406.54