Finding the Fourth Proportional to 23,480.40, 32,403.74 and 12,870.03

Step by Step Solution

1. Step 1: Write the proportion equation
   23,480.40 : 32,403.74 = 12,870.03 : x
2. Step 2: Convert to fraction form
   23,480.40/32,403.74 = 12,870.03/x
3. Step 3: Cross multiply
   23,480.40x = 32,403.74 × 12,870.03
4. Step 4: Simplify right side
   23,480.40x = 417,037,041.56
5. Step 5: Solve for x
   x = 417,037,041.56/23,480.40
6. Step 6: Final answer
   x = 17,761.07