Finding the Fourth Proportional to 8,916.96, 12,300.48 and 5,776.32

Step by Step Solution

1. Step 1: Write the proportion equation
   8,916.96 : 12,300.48 = 5,776.32 : x
2. Step 2: Convert to fraction form
   8,916.96/12,300.48 = 5,776.32/x
3. Step 3: Cross multiply
   8,916.96x = 12,300.48 × 5,776.32
4. Step 4: Simplify right side
   8,916.96x = 71,051,508.63
5. Step 5: Solve for x
   x = 71,051,508.63/8,916.96
6. Step 6: Final answer
   x = 7,968.13