Finding the Fourth Proportional to 17,848.40, 24,631 and 9,890.72

Step by Step Solution

1. Step 1: Write the proportion equation
   17,848.40 : 24,631 = 9,890.72 : x
2. Step 2: Convert to fraction form
   17,848.40/24,631 = 9,890.72/x
3. Step 3: Cross multiply
   17,848.40x = 24,631 × 9,890.72
4. Step 4: Simplify right side
   17,848.40x = 243,618,324.32
5. Step 5: Solve for x
   x = 243,618,324.32/17,848.40
6. Step 6: Final answer
   x = 13,649.31