Finding the Fourth Proportional to 16,710.72, 23,060.79 and 9,258.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,710.72 : 23,060.79 = 9,258.72 : x
2. Step 2: Convert to fraction form
   16,710.72/23,060.79 = 9,258.72/x
3. Step 3: Cross multiply
   16,710.72x = 23,060.79 × 9,258.72
4. Step 4: Simplify right side
   16,710.72x = 213,513,420.74
5. Step 5: Solve for x
   x = 213,513,420.74/16,710.72
6. Step 6: Final answer
   x = 12,777.03