Finding the Fourth Proportional to 6,141.78, 8,472.48 and 4,153.05

Step by Step Solution

1. Step 1: Write the proportion equation
   6,141.78 : 8,472.48 = 4,153.05 : x
2. Step 2: Convert to fraction form
   6,141.78/8,472.48 = 4,153.05/x
3. Step 3: Cross multiply
   6,141.78x = 8,472.48 × 4,153.05
4. Step 4: Simplify right side
   6,141.78x = 35,186,633.06
5. Step 5: Solve for x
   x = 35,186,633.06/6,141.78
6. Step 6: Final answer
   x = 5,729.06