Finding the Fourth Proportional to 11,685.41, 17,511.29 and 5,020.18

Step by Step Solution

1. Step 1: Write the proportion equation
   11,685.41 : 17,511.29 = 5,020.18 : x
2. Step 2: Convert to fraction form
   11,685.41/17,511.29 = 5,020.18/x
3. Step 3: Cross multiply
   11,685.41x = 17,511.29 × 5,020.18
4. Step 4: Simplify right side
   11,685.41x = 87,909,777.78
5. Step 5: Solve for x
   x = 87,909,777.78/11,685.41
6. Step 6: Final answer
   x = 7,523.03