Finding the Fourth Proportional to 23,481.15, 32,403.98 and 12,870.55

Step by Step Solution

1. Step 1: Write the proportion equation
   23,481.15 : 32,403.98 = 12,870.55 : x
2. Step 2: Convert to fraction form
   23,481.15/32,403.98 = 12,870.55/x
3. Step 3: Cross multiply
   23,481.15x = 32,403.98 × 12,870.55
4. Step 4: Simplify right side
   23,481.15x = 417,057,117.47
5. Step 5: Solve for x
   x = 417,057,117.47/23,481.15
6. Step 6: Final answer
   x = 17,761.36