Finding the Fourth Proportional to 16,710.30, 23,059.62 and 9,156.42

Step by Step Solution

1. Step 1: Write the proportion equation
   16,710.30 : 23,059.62 = 9,156.42 : x
2. Step 2: Convert to fraction form
   16,710.30/23,059.62 = 9,156.42/x
3. Step 3: Cross multiply
   16,710.30x = 23,059.62 × 9,156.42
4. Step 4: Simplify right side
   16,710.30x = 211,143,565.76
5. Step 5: Solve for x
   x = 211,143,565.76/16,710.30
6. Step 6: Final answer
   x = 12,635.53