Finding the Fourth Proportional to 20,069.72, 30,108.81 and 7,589.47

Step by Step Solution

1. Step 1: Write the proportion equation
   20,069.72 : 30,108.81 = 7,589.47 : x
2. Step 2: Convert to fraction form
   20,069.72/30,108.81 = 7,589.47/x
3. Step 3: Cross multiply
   20,069.72x = 30,108.81 × 7,589.47
4. Step 4: Simplify right side
   20,069.72x = 228,510,004.55
5. Step 5: Solve for x
   x = 228,510,004.55/20,069.72
6. Step 6: Final answer
   x = 11,385.81