Finding the Fourth Proportional to 23,289, 32,139.03 and 12,678.81

Step by Step Solution

1. Step 1: Write the proportion equation
   23,289 : 32,139.03 = 12,678.81 : x
2. Step 2: Convert to fraction form
   23,289/32,139.03 = 12,678.81/x
3. Step 3: Cross multiply
   23,289x = 32,139.03 × 12,678.81
4. Step 4: Simplify right side
   23,289x = 407,484,654.95
5. Step 5: Solve for x
   x = 407,484,654.95/23,289
6. Step 6: Final answer
   x = 17,496.87