Finding the Fourth Proportional to 17,160.27, 23,656.89 and 12,912.02

Step by Step Solution

1. Step 1: Write the proportion equation
   17,160.27 : 23,656.89 = 12,912.02 : x
2. Step 2: Convert to fraction form
   17,160.27/23,656.89 = 12,912.02/x
3. Step 3: Cross multiply
   17,160.27x = 23,656.89 × 12,912.02
4. Step 4: Simplify right side
   17,160.27x = 305,458,236.82
5. Step 5: Solve for x
   x = 305,458,236.82/17,160.27
6. Step 6: Final answer
   x = 17,800.32