Finding the Fourth Proportional to 11,415.31, 17,121.42 and 3,095.86

Step by Step Solution

1. Step 1: Write the proportion equation
   11,415.31 : 17,121.42 = 3,095.86 : x
2. Step 2: Convert to fraction form
   11,415.31/17,121.42 = 3,095.86/x
3. Step 3: Cross multiply
   11,415.31x = 17,121.42 × 3,095.86
4. Step 4: Simplify right side
   11,415.31x = 53,005,519.32
5. Step 5: Solve for x
   x = 53,005,519.32/11,415.31
6. Step 6: Final answer
   x = 4,643.37