Finding the Fourth Proportional to 11,407.11, 17,111.52 and 3,087.42

Step by Step Solution

1. Step 1: Write the proportion equation
   11,407.11 : 17,111.52 = 3,087.42 : x
2. Step 2: Convert to fraction form
   11,407.11/17,111.52 = 3,087.42/x
3. Step 3: Cross multiply
   11,407.11x = 17,111.52 × 3,087.42
4. Step 4: Simplify right side
   11,407.11x = 52,830,449.08
5. Step 5: Solve for x
   x = 52,830,449.08/11,407.11
6. Step 6: Final answer
   x = 4,631.36