Finding the Fourth Proportional to 23,480.51, 32,402.92 and 12,870.12

Step by Step Solution

1. Step 1: Write the proportion equation
   23,480.51 : 32,402.92 = 12,870.12 : x
2. Step 2: Convert to fraction form
   23,480.51/32,402.92 = 12,870.12/x
3. Step 3: Cross multiply
   23,480.51x = 32,402.92 × 12,870.12
4. Step 4: Simplify right side
   23,480.51x = 417,029,468.75
5. Step 5: Solve for x
   x = 417,029,468.75/23,480.51
6. Step 6: Final answer
   x = 17,760.66