Finding the Fourth Proportional to 17,736.90, 24,477.09 and 9,779.41

Step by Step Solution

1. Step 1: Write the proportion equation
   17,736.90 : 24,477.09 = 9,779.41 : x
2. Step 2: Convert to fraction form
   17,736.90/24,477.09 = 9,779.41/x
3. Step 3: Cross multiply
   17,736.90x = 24,477.09 × 9,779.41
4. Step 4: Simplify right side
   17,736.90x = 239,371,498.72
5. Step 5: Solve for x
   x = 239,371,498.72/17,736.90
6. Step 6: Final answer
   x = 13,495.68