Finding the Fourth Proportional to 9,100.86, 13,651.37 and 2,860.74

Step by Step Solution

1. Step 1: Write the proportion equation
   9,100.86 : 13,651.37 = 2,860.74 : x
2. Step 2: Convert to fraction form
   9,100.86/13,651.37 = 2,860.74/x
3. Step 3: Cross multiply
   9,100.86x = 13,651.37 × 2,860.74
4. Step 4: Simplify right side
   9,100.86x = 39,053,005.91
5. Step 5: Solve for x
   x = 39,053,005.91/9,100.86
6. Step 6: Final answer
   x = 4,291.13