Finding the Fourth Proportional to 23,572.38, 32,530.34 and 12,963

Step by Step Solution

1. Step 1: Write the proportion equation
   23,572.38 : 32,530.34 = 12,963 : x
2. Step 2: Convert to fraction form
   23,572.38/32,530.34 = 12,963/x
3. Step 3: Cross multiply
   23,572.38x = 32,530.34 × 12,963
4. Step 4: Simplify right side
   23,572.38x = 421,690,797.42
5. Step 5: Solve for x
   x = 421,690,797.42/23,572.38
6. Step 6: Final answer
   x = 17,889.19