Finding the Fourth Proportional to 6,109.54, 8,426.34 and 4,221.82

Step by Step Solution

1. Step 1: Write the proportion equation
   6,109.54 : 8,426.34 = 4,221.82 : x
2. Step 2: Convert to fraction form
   6,109.54/8,426.34 = 4,221.82/x
3. Step 3: Cross multiply
   6,109.54x = 8,426.34 × 4,221.82
4. Step 4: Simplify right side
   6,109.54x = 35,574,490.74
5. Step 5: Solve for x
   x = 35,574,490.74/6,109.54
6. Step 6: Final answer
   x = 5,822.78