Finding the Fourth Proportional to 23,900.65, 32,983.59 and 13,290.94

Step by Step Solution

1. Step 1: Write the proportion equation
   23,900.65 : 32,983.59 = 13,290.94 : x
2. Step 2: Convert to fraction form
   23,900.65/32,983.59 = 13,290.94/x
3. Step 3: Cross multiply
   23,900.65x = 32,983.59 × 13,290.94
4. Step 4: Simplify right side
   23,900.65x = 438,382,915.67
5. Step 5: Solve for x
   x = 438,382,915.67/23,900.65
6. Step 6: Final answer
   x = 18,341.88