Finding the Fourth Proportional to 19,011.72, 28,521.42 and 5,863.56

Step by Step Solution

1. Step 1: Write the proportion equation
   19,011.72 : 28,521.42 = 5,863.56 : x
2. Step 2: Convert to fraction form
   19,011.72/28,521.42 = 5,863.56/x
3. Step 3: Cross multiply
   19,011.72x = 28,521.42 × 5,863.56
4. Step 4: Simplify right side
   19,011.72x = 167,237,057.46
5. Step 5: Solve for x
   x = 167,237,057.46/19,011.72
6. Step 6: Final answer
   x = 8,796.52