Finding the Fourth Proportional to 9,415.26, 14,111.82 and 3,865.86

Step by Step Solution

1. Step 1: Write the proportion equation
   9,415.26 : 14,111.82 = 3,865.86 : x
2. Step 2: Convert to fraction form
   9,415.26/14,111.82 = 3,865.86/x
3. Step 3: Cross multiply
   9,415.26x = 14,111.82 × 3,865.86
4. Step 4: Simplify right side
   9,415.26x = 54,554,320.47
5. Step 5: Solve for x
   x = 54,554,320.47/9,415.26
6. Step 6: Final answer
   x = 5,794.24