Finding the Fourth Proportional to 17,816.76, 24,586.83 and 9,858.78

Step by Step Solution

1. Step 1: Write the proportion equation
   17,816.76 : 24,586.83 = 9,858.78 : x
2. Step 2: Convert to fraction form
   17,816.76/24,586.83 = 9,858.78/x
3. Step 3: Cross multiply
   17,816.76x = 24,586.83 × 9,858.78
4. Step 4: Simplify right side
   17,816.76x = 242,396,147.87
5. Step 5: Solve for x
   x = 242,396,147.87/17,816.76
6. Step 6: Final answer
   x = 13,604.95