Finding the Fourth Proportional to 17,858.46, 24,644.30 and 9,900.20

Step by Step Solution

1. Step 1: Write the proportion equation
   17,858.46 : 24,644.30 = 9,900.20 : x
2. Step 2: Convert to fraction form
   17,858.46/24,644.30 = 9,900.20/x
3. Step 3: Cross multiply
   17,858.46x = 24,644.30 × 9,900.20
4. Step 4: Simplify right side
   17,858.46x = 243,983,498.86
5. Step 5: Solve for x
   x = 243,983,498.86/17,858.46
6. Step 6: Final answer
   x = 13,662.07