Finding the Fourth Proportional to 9,898.62, 14,836.41 and 9,789.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,898.62 : 14,836.41 = 9,789.18 : x
2. Step 2: Convert to fraction form
   9,898.62/14,836.41 = 9,789.18/x
3. Step 3: Cross multiply
   9,898.62x = 14,836.41 × 9,789.18
4. Step 4: Simplify right side
   9,898.62x = 145,236,288.04
5. Step 5: Solve for x
   x = 145,236,288.04/9,898.62
6. Step 6: Final answer
   x = 14,672.38