Finding the Fourth Proportional to 12,535.12, 17,300.28 and 7,228.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,535.12 : 17,300.28 = 7,228.88 : x
2. Step 2: Convert to fraction form
   12,535.12/17,300.28 = 7,228.88/x
3. Step 3: Cross multiply
   12,535.12x = 17,300.28 × 7,228.88
4. Step 4: Simplify right side
   12,535.12x = 125,061,648.09
5. Step 5: Solve for x
   x = 125,061,648.09/12,535.12
6. Step 6: Final answer
   x = 9,976.90