Finding the Fourth Proportional to 21,541.89, 32,321.07 and 8,403.42

Step by Step Solution

1. Step 1: Write the proportion equation
   21,541.89 : 32,321.07 = 8,403.42 : x
2. Step 2: Convert to fraction form
   21,541.89/32,321.07 = 8,403.42/x
3. Step 3: Cross multiply
   21,541.89x = 32,321.07 × 8,403.42
4. Step 4: Simplify right side
   21,541.89x = 271,607,526.06
5. Step 5: Solve for x
   x = 271,607,526.06/21,541.89
6. Step 6: Final answer
   x = 12,608.34