Finding the Fourth Proportional to 12,833.76, 17,710.56 and 7,244.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,833.76 : 17,710.56 = 7,244.72 : x
2. Step 2: Convert to fraction form
   12,833.76/17,710.56 = 7,244.72/x
3. Step 3: Cross multiply
   12,833.76x = 17,710.56 × 7,244.72
4. Step 4: Simplify right side
   12,833.76x = 128,308,048.24
5. Step 5: Solve for x
   x = 128,308,048.24/12,833.76
6. Step 6: Final answer
   x = 9,997.70