Finding the Fourth Proportional to 8,922.48, 12,308.94 and 5,779.68

Step by Step Solution

1. Step 1: Write the proportion equation
   8,922.48 : 12,308.94 = 5,779.68 : x
2. Step 2: Convert to fraction form
   8,922.48/12,308.94 = 5,779.68/x
3. Step 3: Cross multiply
   8,922.48x = 12,308.94 × 5,779.68
4. Step 4: Simplify right side
   8,922.48x = 71,141,734.34
5. Step 5: Solve for x
   x = 71,141,734.34/8,922.48
6. Step 6: Final answer
   x = 7,973.31