Finding the Fourth Proportional to 16,710.38, 23,060.37 and 9,156.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,710.38 : 23,060.37 = 9,156.72 : x
2. Step 2: Convert to fraction form
   16,710.38/23,060.37 = 9,156.72/x
3. Step 3: Cross multiply
   16,710.38x = 23,060.37 × 9,156.72
4. Step 4: Simplify right side
   16,710.38x = 211,157,351.19
5. Step 5: Solve for x
   x = 211,157,351.19/16,710.38
6. Step 6: Final answer
   x = 12,636.30