Finding the Fourth Proportional to 12,123.46, 16,712.31 and 7,404.58

Step by Step Solution

1. Step 1: Write the proportion equation
   12,123.46 : 16,712.31 = 7,404.58 : x
2. Step 2: Convert to fraction form
   12,123.46/16,712.31 = 7,404.58/x
3. Step 3: Cross multiply
   12,123.46x = 16,712.31 × 7,404.58
4. Step 4: Simplify right side
   12,123.46x = 123,747,636.38
5. Step 5: Solve for x
   x = 123,747,636.38/12,123.46
6. Step 6: Final answer
   x = 10,207.29