Finding the Fourth Proportional to 15,463.10, 21,339.50 and 8,389.52

Step by Step Solution

1. Step 1: Write the proportion equation
   15,463.10 : 21,339.50 = 8,389.52 : x
2. Step 2: Convert to fraction form
   15,463.10/21,339.50 = 8,389.52/x
3. Step 3: Cross multiply
   15,463.10x = 21,339.50 × 8,389.52
4. Step 4: Simplify right side
   15,463.10x = 179,028,093.42
5. Step 5: Solve for x
   x = 179,028,093.42/15,463.10
6. Step 6: Final answer
   x = 11,577.76