Finding the Fourth Proportional to 17,109.56, 23,556.30 and 14,900.60

Step by Step Solution

1. Step 1: Write the proportion equation
   17,109.56 : 23,556.30 = 14,900.60 : x
2. Step 2: Convert to fraction form
   17,109.56/23,556.30 = 14,900.60/x
3. Step 3: Cross multiply
   17,109.56x = 23,556.30 × 14,900.60
4. Step 4: Simplify right side
   17,109.56x = 351,003,003.78
5. Step 5: Solve for x
   x = 351,003,003.78/17,109.56
6. Step 6: Final answer
   x = 20,515.02