Finding the Fourth Proportional to 11,913.98, 17,872.62 and 6,918.71

Step by Step Solution

1. Step 1: Write the proportion equation
   11,913.98 : 17,872.62 = 6,918.71 : x
2. Step 2: Convert to fraction form
   11,913.98/17,872.62 = 6,918.71/x
3. Step 3: Cross multiply
   11,913.98x = 17,872.62 × 6,918.71
4. Step 4: Simplify right side
   11,913.98x = 123,655,474.72
5. Step 5: Solve for x
   x = 123,655,474.72/11,913.98
6. Step 6: Final answer
   x = 10,379.02