Finding the Fourth Proportional to 23,308.78, 32,178.28 and 18,123.16

Step by Step Solution

1. Step 1: Write the proportion equation
   23,308.78 : 32,178.28 = 18,123.16 : x
2. Step 2: Convert to fraction form
   23,308.78/32,178.28 = 18,123.16/x
3. Step 3: Cross multiply
   23,308.78x = 32,178.28 × 18,123.16
4. Step 4: Simplify right side
   23,308.78x = 583,172,085.53
5. Step 5: Solve for x
   x = 583,172,085.53/23,308.78
6. Step 6: Final answer
   x = 25,019.42