Finding the Fourth Proportional to 17,581, 24,256.06 and 12,278.74

Step by Step Solution

1. Step 1: Write the proportion equation
   17,581 : 24,256.06 = 12,278.74 : x
2. Step 2: Convert to fraction form
   17,581/24,256.06 = 12,278.74/x
3. Step 3: Cross multiply
   17,581x = 24,256.06 × 12,278.74
4. Step 4: Simplify right side
   17,581x = 297,833,854.16
5. Step 5: Solve for x
   x = 297,833,854.16/17,581
6. Step 6: Final answer
   x = 16,940.67