Finding the Fourth Proportional to 23,897.72, 32,980.02 and 13,287.12

Step by Step Solution

1. Step 1: Write the proportion equation
   23,897.72 : 32,980.02 = 13,287.12 : x
2. Step 2: Convert to fraction form
   23,897.72/32,980.02 = 13,287.12/x
3. Step 3: Cross multiply
   23,897.72x = 32,980.02 × 13,287.12
4. Step 4: Simplify right side
   23,897.72x = 438,209,483.34
5. Step 5: Solve for x
   x = 438,209,483.34/23,897.72
6. Step 6: Final answer
   x = 18,336.87