Finding the Fourth Proportional to 8,866.96, 13,300.78 and 3,319.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,866.96 : 13,300.78 = 3,319.72 : x
2. Step 2: Convert to fraction form
   8,866.96/13,300.78 = 3,319.72/x
3. Step 3: Cross multiply
   8,866.96x = 13,300.78 × 3,319.72
4. Step 4: Simplify right side
   8,866.96x = 44,154,865.38
5. Step 5: Solve for x
   x = 44,154,865.38/8,866.96
6. Step 6: Final answer
   x = 4,979.71