Finding the Fourth Proportional to 12,783.43, 17,635.46 and 7,475.91

Step by Step Solution

1. Step 1: Write the proportion equation
   12,783.43 : 17,635.46 = 7,475.91 : x
2. Step 2: Convert to fraction form
   12,783.43/17,635.46 = 7,475.91/x
3. Step 3: Cross multiply
   12,783.43x = 17,635.46 × 7,475.91
4. Step 4: Simplify right side
   12,783.43x = 131,840,986.21
5. Step 5: Solve for x
   x = 131,840,986.21/12,783.43
6. Step 6: Final answer
   x = 10,313.43