Finding the Fourth Proportional to 19,082.52, 28,615.86 and 7,389

Step by Step Solution

1. Step 1: Write the proportion equation
   19,082.52 : 28,615.86 = 7,389 : x
2. Step 2: Convert to fraction form
   19,082.52/28,615.86 = 7,389/x
3. Step 3: Cross multiply
   19,082.52x = 28,615.86 × 7,389
4. Step 4: Simplify right side
   19,082.52x = 211,442,589.54
5. Step 5: Solve for x
   x = 211,442,589.54/19,082.52
6. Step 6: Final answer
   x = 11,080.43