Finding the Fourth Proportional to 8,796.87, 13,161.89 and 5,407.56

Step by Step Solution

1. Step 1: Write the proportion equation
   8,796.87 : 13,161.89 = 5,407.56 : x
2. Step 2: Convert to fraction form
   8,796.87/13,161.89 = 5,407.56/x
3. Step 3: Cross multiply
   8,796.87x = 13,161.89 × 5,407.56
4. Step 4: Simplify right side
   8,796.87x = 71,173,723.41
5. Step 5: Solve for x
   x = 71,173,723.41/8,796.87
6. Step 6: Final answer
   x = 8,090.80