Finding the Fourth Proportional to 17,111.56, 23,559.06 and 14,902.60

Step by Step Solution

1. Step 1: Write the proportion equation
   17,111.56 : 23,559.06 = 14,902.60 : x
2. Step 2: Convert to fraction form
   17,111.56/23,559.06 = 14,902.60/x
3. Step 3: Cross multiply
   17,111.56x = 23,559.06 × 14,902.60
4. Step 4: Simplify right side
   17,111.56x = 351,091,247.56
5. Step 5: Solve for x
   x = 351,091,247.56/17,111.56
6. Step 6: Final answer
   x = 20,517.78