Finding the Fourth Proportional to 11,422.42, 17,131.92 and 3,102.91

Step by Step Solution

1. Step 1: Write the proportion equation
   11,422.42 : 17,131.92 = 3,102.91 : x
2. Step 2: Convert to fraction form
   11,422.42/17,131.92 = 3,102.91/x
3. Step 3: Cross multiply
   11,422.42x = 17,131.92 × 3,102.91
4. Step 4: Simplify right side
   11,422.42x = 53,158,805.89
5. Step 5: Solve for x
   x = 53,158,805.89/11,422.42
6. Step 6: Final answer
   x = 4,653.90