Finding the Fourth Proportional to 21,839.49, 32,767.47 and 13,080.69

Step by Step Solution

1. Step 1: Write the proportion equation
   21,839.49 : 32,767.47 = 13,080.69 : x
2. Step 2: Convert to fraction form
   21,839.49/32,767.47 = 13,080.69/x
3. Step 3: Cross multiply
   21,839.49x = 32,767.47 × 13,080.69
4. Step 4: Simplify right side
   21,839.49x = 428,621,117.15
5. Step 5: Solve for x
   x = 428,621,117.15/21,839.49
6. Step 6: Final answer
   x = 19,625.97