Finding the Fourth Proportional to 8,693.56, 13,011.18 and 5,908.78

Step by Step Solution

1. Step 1: Write the proportion equation
   8,693.56 : 13,011.18 = 5,908.78 : x
2. Step 2: Convert to fraction form
   8,693.56/13,011.18 = 5,908.78/x
3. Step 3: Cross multiply
   8,693.56x = 13,011.18 × 5,908.78
4. Step 4: Simplify right side
   8,693.56x = 76,880,200.16
5. Step 5: Solve for x
   x = 76,880,200.16/8,693.56
6. Step 6: Final answer
   x = 8,843.35