Finding the Fourth Proportional to 23,288.76, 32,137.47 and 12,678.39

Step by Step Solution

1. Step 1: Write the proportion equation
   23,288.76 : 32,137.47 = 12,678.39 : x
2. Step 2: Convert to fraction form
   23,288.76/32,137.47 = 12,678.39/x
3. Step 3: Cross multiply
   23,288.76x = 32,137.47 × 12,678.39
4. Step 4: Simplify right side
   23,288.76x = 407,451,378.27
5. Step 5: Solve for x
   x = 407,451,378.27/23,288.76
6. Step 6: Final answer
   x = 17,495.62