Finding the Fourth Proportional to 19,954.72, 29,931.78 and 5,162.44

Step by Step Solution

1. Step 1: Write the proportion equation
   19,954.72 : 29,931.78 = 5,162.44 : x
2. Step 2: Convert to fraction form
   19,954.72/29,931.78 = 5,162.44/x
3. Step 3: Cross multiply
   19,954.72x = 29,931.78 × 5,162.44
4. Step 4: Simplify right side
   19,954.72x = 154,521,018.34
5. Step 5: Solve for x
   x = 154,521,018.34/19,954.72
6. Step 6: Final answer
   x = 7,743.58