Finding the Fourth Proportional to 11,369.16, 17,068.32 and 7,687.71

Step by Step Solution

1. Step 1: Write the proportion equation
   11,369.16 : 17,068.32 = 7,687.71 : x
2. Step 2: Convert to fraction form
   11,369.16/17,068.32 = 7,687.71/x
3. Step 3: Cross multiply
   11,369.16x = 17,068.32 × 7,687.71
4. Step 4: Simplify right side
   11,369.16x = 131,216,294.35
5. Step 5: Solve for x
   x = 131,216,294.35/11,369.16
6. Step 6: Final answer
   x = 11,541.42