Finding the Fourth Proportional to 6,918.52, 10,387.01 and 4,112.59

Step by Step Solution

1. Step 1: Write the proportion equation
   6,918.52 : 10,387.01 = 4,112.59 : x
2. Step 2: Convert to fraction form
   6,918.52/10,387.01 = 4,112.59/x
3. Step 3: Cross multiply
   6,918.52x = 10,387.01 × 4,112.59
4. Step 4: Simplify right side
   6,918.52x = 42,717,513.46
5. Step 5: Solve for x
   x = 42,717,513.46/6,918.52
6. Step 6: Final answer
   x = 6,174.37