Finding the Fourth Proportional to 23,897.80, 32,978.82 and 13,287.34

Step by Step Solution

1. Step 1: Write the proportion equation
   23,897.80 : 32,978.82 = 13,287.34 : x
2. Step 2: Convert to fraction form
   23,897.80/32,978.82 = 13,287.34/x
3. Step 3: Cross multiply
   23,897.80x = 32,978.82 × 13,287.34
4. Step 4: Simplify right side
   23,897.80x = 438,200,794.14
5. Step 5: Solve for x
   x = 438,200,794.14/23,897.80
6. Step 6: Final answer
   x = 18,336.45