Finding the Fourth Proportional to 6,105.78, 8,422.38 and 3,746.25

Step by Step Solution

1. Step 1: Write the proportion equation
   6,105.78 : 8,422.38 = 3,746.25 : x
2. Step 2: Convert to fraction form
   6,105.78/8,422.38 = 3,746.25/x
3. Step 3: Cross multiply
   6,105.78x = 8,422.38 × 3,746.25
4. Step 4: Simplify right side
   6,105.78x = 31,552,341.08
5. Step 5: Solve for x
   x = 31,552,341.08/6,105.78
6. Step 6: Final answer
   x = 5,167.62