Finding the Fourth Proportional to 23,897.94, 32,978.75 and 13,287.35

Step by Step Solution

1. Step 1: Write the proportion equation
   23,897.94 : 32,978.75 = 13,287.35 : x
2. Step 2: Convert to fraction form
   23,897.94/32,978.75 = 13,287.35/x
3. Step 3: Cross multiply
   23,897.94x = 32,978.75 × 13,287.35
4. Step 4: Simplify right side
   23,897.94x = 438,199,962.48
5. Step 5: Solve for x
   x = 438,199,962.48/23,897.94
6. Step 6: Final answer
   x = 18,336.31