Finding the Fourth Proportional to 21,459.78, 32,191.50 and 5,877.42

Step by Step Solution

1. Step 1: Write the proportion equation
   21,459.78 : 32,191.50 = 5,877.42 : x
2. Step 2: Convert to fraction form
   21,459.78/32,191.50 = 5,877.42/x
3. Step 3: Cross multiply
   21,459.78x = 32,191.50 × 5,877.42
4. Step 4: Simplify right side
   21,459.78x = 189,202,965.93
5. Step 5: Solve for x
   x = 189,202,965.93/21,459.78
6. Step 6: Final answer
   x = 8,816.63