Finding the Fourth Proportional to 17,129.88, 23,620.56 and 11,150.52

Step by Step Solution

1. Step 1: Write the proportion equation
   17,129.88 : 23,620.56 = 11,150.52 : x
2. Step 2: Convert to fraction form
   17,129.88/23,620.56 = 11,150.52/x
3. Step 3: Cross multiply
   17,129.88x = 23,620.56 × 11,150.52
4. Step 4: Simplify right side
   17,129.88x = 263,381,526.69
5. Step 5: Solve for x
   x = 263,381,526.69/17,129.88
6. Step 6: Final answer
   x = 15,375.56