Finding the Fourth Proportional to 11,559.96, 17,256.33 and 10,158.71

Step by Step Solution

1. Step 1: Write the proportion equation
   11,559.96 : 17,256.33 = 10,158.71 : x
2. Step 2: Convert to fraction form
   11,559.96/17,256.33 = 10,158.71/x
3. Step 3: Cross multiply
   11,559.96x = 17,256.33 × 10,158.71
4. Step 4: Simplify right side
   11,559.96x = 175,301,965.85
5. Step 5: Solve for x
   x = 175,301,965.85/11,559.96
6. Step 6: Final answer
   x = 15,164.58