Finding the Fourth Proportional to 6,103.88, 8,420.34 and 4,111.88

Step by Step Solution

1. Step 1: Write the proportion equation
   6,103.88 : 8,420.34 = 4,111.88 : x
2. Step 2: Convert to fraction form
   6,103.88/8,420.34 = 4,111.88/x
3. Step 3: Cross multiply
   6,103.88x = 8,420.34 × 4,111.88
4. Step 4: Simplify right side
   6,103.88x = 34,623,427.64
5. Step 5: Solve for x
   x = 34,623,427.64/6,103.88
6. Step 6: Final answer
   x = 5,672.36