Finding the Fourth Proportional to 8,400.18, 12,591.05 and 3,467.15

Step by Step Solution

1. Step 1: Write the proportion equation
   8,400.18 : 12,591.05 = 3,467.15 : x
2. Step 2: Convert to fraction form
   8,400.18/12,591.05 = 3,467.15/x
3. Step 3: Cross multiply
   8,400.18x = 12,591.05 × 3,467.15
4. Step 4: Simplify right side
   8,400.18x = 43,654,978.72
5. Step 5: Solve for x
   x = 43,654,978.72/8,400.18
6. Step 6: Final answer
   x = 5,196.91