Finding the Fourth Proportional to 23,693.65, 32,698.57 and 12,939.53

Step by Step Solution

1. Step 1: Write the proportion equation
   23,693.65 : 32,698.57 = 12,939.53 : x
2. Step 2: Convert to fraction form
   23,693.65/32,698.57 = 12,939.53/x
3. Step 3: Cross multiply
   23,693.65x = 32,698.57 × 12,939.53
4. Step 4: Simplify right side
   23,693.65x = 423,103,955.89
5. Step 5: Solve for x
   x = 423,103,955.89/23,693.65
6. Step 6: Final answer
   x = 17,857.27