Finding the Fourth Proportional to 16,870.28, 25,285.37 and 7,006.91

Step by Step Solution

1. Step 1: Write the proportion equation
   16,870.28 : 25,285.37 = 7,006.91 : x
2. Step 2: Convert to fraction form
   16,870.28/25,285.37 = 7,006.91/x
3. Step 3: Cross multiply
   16,870.28x = 25,285.37 × 7,006.91
4. Step 4: Simplify right side
   16,870.28x = 177,172,150.45
5. Step 5: Solve for x
   x = 177,172,150.45/16,870.28
6. Step 6: Final answer
   x = 10,502.03