Finding the Fourth Proportional to 12,931.28, 17,834.28 and 10,569.32

Step by Step Solution

1. Step 1: Write the proportion equation
   12,931.28 : 17,834.28 = 10,569.32 : x
2. Step 2: Convert to fraction form
   12,931.28/17,834.28 = 10,569.32/x
3. Step 3: Cross multiply
   12,931.28x = 17,834.28 × 10,569.32
4. Step 4: Simplify right side
   12,931.28x = 188,496,212.29
5. Step 5: Solve for x
   x = 188,496,212.29/12,931.28
6. Step 6: Final answer
   x = 14,576.76