Finding the Fourth Proportional to 16,751.28, 23,117.40 and 9,300.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,751.28 : 23,117.40 = 9,300.72 : x
2. Step 2: Convert to fraction form
   16,751.28/23,117.40 = 9,300.72/x
3. Step 3: Cross multiply
   16,751.28x = 23,117.40 × 9,300.72
4. Step 4: Simplify right side
   16,751.28x = 215,008,464.53
5. Step 5: Solve for x
   x = 215,008,464.53/16,751.28
6. Step 6: Final answer
   x = 12,835.35