Finding the Fourth Proportional to 23,470.04, 32,388.78 and 12,860.30

Step by Step Solution

1. Step 1: Write the proportion equation
   23,470.04 : 32,388.78 = 12,860.30 : x
2. Step 2: Convert to fraction form
   23,470.04/32,388.78 = 12,860.30/x
3. Step 3: Cross multiply
   23,470.04x = 32,388.78 × 12,860.30
4. Step 4: Simplify right side
   23,470.04x = 416,529,427.43
5. Step 5: Solve for x
   x = 416,529,427.43/23,470.04
6. Step 6: Final answer
   x = 17,747.28