Finding the Fourth Proportional to 17,601.68, 26,353.92 and 12,404.72

Step by Step Solution

1. Step 1: Write the proportion equation
   17,601.68 : 26,353.92 = 12,404.72 : x
2. Step 2: Convert to fraction form
   17,601.68/26,353.92 = 12,404.72/x
3. Step 3: Cross multiply
   17,601.68x = 26,353.92 × 12,404.72
4. Step 4: Simplify right side
   17,601.68x = 326,912,998.50
5. Step 5: Solve for x
   x = 326,912,998.50/17,601.68
6. Step 6: Final answer
   x = 18,572.83