Finding the Fourth Proportional to 15,942.72, 23,900.88 and 7,618.56

Step by Step Solution

1. Step 1: Write the proportion equation
   15,942.72 : 23,900.88 = 7,618.56 : x
2. Step 2: Convert to fraction form
   15,942.72/23,900.88 = 7,618.56/x
3. Step 3: Cross multiply
   15,942.72x = 23,900.88 × 7,618.56
4. Step 4: Simplify right side
   15,942.72x = 182,090,288.33
5. Step 5: Solve for x
   x = 182,090,288.33/15,942.72
6. Step 6: Final answer
   x = 11,421.53