Finding the Fourth Proportional to 23,288.60, 32,138.42 and 12,678.24

Step by Step Solution

1. Step 1: Write the proportion equation
   23,288.60 : 32,138.42 = 12,678.24 : x
2. Step 2: Convert to fraction form
   23,288.60/32,138.42 = 12,678.24/x
3. Step 3: Cross multiply
   23,288.60x = 32,138.42 × 12,678.24
4. Step 4: Simplify right side
   23,288.60x = 407,458,601.98
5. Step 5: Solve for x
   x = 407,458,601.98/23,288.60
6. Step 6: Final answer
   x = 17,496.05