Finding the Fourth Proportional to 23,480.59, 32,403.65 and 12,870.15

Step by Step Solution

1. Step 1: Write the proportion equation
   23,480.59 : 32,403.65 = 12,870.15 : x
2. Step 2: Convert to fraction form
   23,480.59/32,403.65 = 12,870.15/x
3. Step 3: Cross multiply
   23,480.59x = 32,403.65 × 12,870.15
4. Step 4: Simplify right side
   23,480.59x = 417,039,836.05
5. Step 5: Solve for x
   x = 417,039,836.05/23,480.59
6. Step 6: Final answer
   x = 17,761.05