Finding the Fourth Proportional to 20,753.89, 31,123.18 and 7,423.27

Step by Step Solution

1. Step 1: Write the proportion equation
   20,753.89 : 31,123.18 = 7,423.27 : x
2. Step 2: Convert to fraction form
   20,753.89/31,123.18 = 7,423.27/x
3. Step 3: Cross multiply
   20,753.89x = 31,123.18 × 7,423.27
4. Step 4: Simplify right side
   20,753.89x = 231,035,699.87
5. Step 5: Solve for x
   x = 231,035,699.87/20,753.89
6. Step 6: Final answer
   x = 11,132.16