Finding the Fourth Proportional to 17,828.40, 24,603.02 and 9,870.96

Step by Step Solution

1. Step 1: Write the proportion equation
   17,828.40 : 24,603.02 = 9,870.96 : x
2. Step 2: Convert to fraction form
   17,828.40/24,603.02 = 9,870.96/x
3. Step 3: Cross multiply
   17,828.40x = 24,603.02 × 9,870.96
4. Step 4: Simplify right side
   17,828.40x = 242,855,426.30
5. Step 5: Solve for x
   x = 242,855,426.30/17,828.40
6. Step 6: Final answer
   x = 13,621.83