Finding the Fourth Proportional to 23,470.48, 32,390.04 and 12,860.56

Step by Step Solution

1. Step 1: Write the proportion equation
   23,470.48 : 32,390.04 = 12,860.56 : x
2. Step 2: Convert to fraction form
   23,470.48/32,390.04 = 12,860.56/x
3. Step 3: Cross multiply
   23,470.48x = 32,390.04 × 12,860.56
4. Step 4: Simplify right side
   23,470.48x = 416,554,052.82
5. Step 5: Solve for x
   x = 416,554,052.82/23,470.48
6. Step 6: Final answer
   x = 17,748.00