Finding the Fourth Proportional to 11,678.17, 17,516.77 and 5,436.04

Step by Step Solution

1. Step 1: Write the proportion equation
   11,678.17 : 17,516.77 = 5,436.04 : x
2. Step 2: Convert to fraction form
   11,678.17/17,516.77 = 5,436.04/x
3. Step 3: Cross multiply
   11,678.17x = 17,516.77 × 5,436.04
4. Step 4: Simplify right side
   11,678.17x = 95,221,747.63
5. Step 5: Solve for x
   x = 95,221,747.63/11,678.17
6. Step 6: Final answer
   x = 8,153.82