Finding the Fourth Proportional to 8,913.39, 13,363.48 and 5,404.17

Step by Step Solution

1. Step 1: Write the proportion equation
   8,913.39 : 13,363.48 = 5,404.17 : x
2. Step 2: Convert to fraction form
   8,913.39/13,363.48 = 5,404.17/x
3. Step 3: Cross multiply
   8,913.39x = 13,363.48 × 5,404.17
4. Step 4: Simplify right side
   8,913.39x = 72,218,499.41
5. Step 5: Solve for x
   x = 72,218,499.41/8,913.39
6. Step 6: Final answer
   x = 8,102.25