Finding the Fourth Proportional to 13,696.10, 18,900.24 and 7,727.42

Step by Step Solution

1. Step 1: Write the proportion equation
   13,696.10 : 18,900.24 = 7,727.42 : x
2. Step 2: Convert to fraction form
   13,696.10/18,900.24 = 7,727.42/x
3. Step 3: Cross multiply
   13,696.10x = 18,900.24 × 7,727.42
4. Step 4: Simplify right side
   13,696.10x = 146,050,092.58
5. Step 5: Solve for x
   x = 146,050,092.58/13,696.10
6. Step 6: Final answer
   x = 10,663.63