Finding the Fourth Proportional to 21,861.12, 32,793.48 and 7,072.41

Step by Step Solution

1. Step 1: Write the proportion equation
   21,861.12 : 32,793.48 = 7,072.41 : x
2. Step 2: Convert to fraction form
   21,861.12/32,793.48 = 7,072.41/x
3. Step 3: Cross multiply
   21,861.12x = 32,793.48 × 7,072.41
4. Step 4: Simplify right side
   21,861.12x = 231,928,935.89
5. Step 5: Solve for x
   x = 231,928,935.89/21,861.12
6. Step 6: Final answer
   x = 10,609.20