Finding the Fourth Proportional to 10,763.24, 14,819.52 and 9,779.06

Step by Step Solution

1. Step 1: Write the proportion equation
   10,763.24 : 14,819.52 = 9,779.06 : x
2. Step 2: Convert to fraction form
   10,763.24/14,819.52 = 9,779.06/x
3. Step 3: Cross multiply
   10,763.24x = 14,819.52 × 9,779.06
4. Step 4: Simplify right side
   10,763.24x = 144,920,975.25
5. Step 5: Solve for x
   x = 144,920,975.25/10,763.24
6. Step 6: Final answer
   x = 13,464.44