Finding the Fourth Proportional to 23,480.84, 32,403.48 and 12,870.56

Step by Step Solution

1. Step 1: Write the proportion equation
   23,480.84 : 32,403.48 = 12,870.56 : x
2. Step 2: Convert to fraction form
   23,480.84/32,403.48 = 12,870.56/x
3. Step 3: Cross multiply
   23,480.84x = 32,403.48 × 12,870.56
4. Step 4: Simplify right side
   23,480.84x = 417,050,933.55
5. Step 5: Solve for x
   x = 417,050,933.55/23,480.84
6. Step 6: Final answer
   x = 17,761.33