Finding the Fourth Proportional to 23,465.40, 32,382.72 and 12,855.05

Step by Step Solution

1. Step 1: Write the proportion equation
   23,465.40 : 32,382.72 = 12,855.05 : x
2. Step 2: Convert to fraction form
   23,465.40/32,382.72 = 12,855.05/x
3. Step 3: Cross multiply
   23,465.40x = 32,382.72 × 12,855.05
4. Step 4: Simplify right side
   23,465.40x = 416,281,322.82
5. Step 5: Solve for x
   x = 416,281,322.82/23,465.40
6. Step 6: Final answer
   x = 17,740.22