Finding the Fourth Proportional to 23,463, 32,405.40 and 15,540.12

Step by Step Solution

1. Step 1: Write the proportion equation
   23,463 : 32,405.40 = 15,540.12 : x
2. Step 2: Convert to fraction form
   23,463/32,405.40 = 15,540.12/x
3. Step 3: Cross multiply
   23,463x = 32,405.40 × 15,540.12
4. Step 4: Simplify right side
   23,463x = 503,583,804.65
5. Step 5: Solve for x
   x = 503,583,804.65/23,463
6. Step 6: Final answer
   x = 21,462.89