Finding the Fourth Proportional to 23,480.52, 32,403.06 and 12,870.20

Step by Step Solution

1. Step 1: Write the proportion equation
   23,480.52 : 32,403.06 = 12,870.20 : x
2. Step 2: Convert to fraction form
   23,480.52/32,403.06 = 12,870.20/x
3. Step 3: Cross multiply
   23,480.52x = 32,403.06 × 12,870.20
4. Step 4: Simplify right side
   23,480.52x = 417,033,862.81
5. Step 5: Solve for x
   x = 417,033,862.81/23,480.52
6. Step 6: Final answer
   x = 17,760.84