Finding the Fourth Proportional to 8,930.49, 13,380.63 and 5,409.82

Step by Step Solution

1. Step 1: Write the proportion equation
   8,930.49 : 13,380.63 = 5,409.82 : x
2. Step 2: Convert to fraction form
   8,930.49/13,380.63 = 5,409.82/x
3. Step 3: Cross multiply
   8,930.49x = 13,380.63 × 5,409.82
4. Step 4: Simplify right side
   8,930.49x = 72,386,799.79
5. Step 5: Solve for x
   x = 72,386,799.79/8,930.49
6. Step 6: Final answer
   x = 8,105.58