Finding the Fourth Proportional to 17,828.37, 24,603.35 and 9,870.74

Step by Step Solution

1. Step 1: Write the proportion equation
   17,828.37 : 24,603.35 = 9,870.74 : x
2. Step 2: Convert to fraction form
   17,828.37/24,603.35 = 9,870.74/x
3. Step 3: Cross multiply
   17,828.37x = 24,603.35 × 9,870.74
4. Step 4: Simplify right side
   17,828.37x = 242,853,098.61
5. Step 5: Solve for x
   x = 242,853,098.61/17,828.37
6. Step 6: Final answer
   x = 13,621.72