Finding the Fourth Proportional to 11,857.98, 17,787.27 and 5,616.52

Step by Step Solution

1. Step 1: Write the proportion equation
   11,857.98 : 17,787.27 = 5,616.52 : x
2. Step 2: Convert to fraction form
   11,857.98/17,787.27 = 5,616.52/x
3. Step 3: Cross multiply
   11,857.98x = 17,787.27 × 5,616.52
4. Step 4: Simplify right side
   11,857.98x = 99,902,557.70
5. Step 5: Solve for x
   x = 99,902,557.70/11,857.98
6. Step 6: Final answer
   x = 8,424.92