Finding the Fourth Proportional to 17,809.56, 24,579.50 and 10,256.21

Step by Step Solution

1. Step 1: Write the proportion equation
   17,809.56 : 24,579.50 = 10,256.21 : x
2. Step 2: Convert to fraction form
   17,809.56/24,579.50 = 10,256.21/x
3. Step 3: Cross multiply
   17,809.56x = 24,579.50 × 10,256.21
4. Step 4: Simplify right side
   17,809.56x = 252,092,339.52
5. Step 5: Solve for x
   x = 252,092,339.52/17,809.56
6. Step 6: Final answer
   x = 14,154.89