Finding the Fourth Proportional to 8,926.94, 13,393.60 and 5,424.10

Step by Step Solution

1. Step 1: Write the proportion equation
   8,926.94 : 13,393.60 = 5,424.10 : x
2. Step 2: Convert to fraction form
   8,926.94/13,393.60 = 5,424.10/x
3. Step 3: Cross multiply
   8,926.94x = 13,393.60 × 5,424.10
4. Step 4: Simplify right side
   8,926.94x = 72,648,178.72
5. Step 5: Solve for x
   x = 72,648,178.72/8,926.94
6. Step 6: Final answer
   x = 8,138.08