Finding the Fourth Proportional to 23,470, 32,388.61 and 12,860.04

Step by Step Solution

1. Step 1: Write the proportion equation
   23,470 : 32,388.61 = 12,860.04 : x
2. Step 2: Convert to fraction form
   23,470/32,388.61 = 12,860.04/x
3. Step 3: Cross multiply
   23,470x = 32,388.61 × 12,860.04
4. Step 4: Simplify right side
   23,470x = 416,518,820.14
5. Step 5: Solve for x
   x = 416,518,820.14/23,470
6. Step 6: Final answer
   x = 17,746.86