Finding the Fourth Proportional to 21,967.14, 30,315.16 and 12,536.58

Step by Step Solution

1. Step 1: Write the proportion equation
   21,967.14 : 30,315.16 = 12,536.58 : x
2. Step 2: Convert to fraction form
   21,967.14/30,315.16 = 12,536.58/x
3. Step 3: Cross multiply
   21,967.14x = 30,315.16 × 12,536.58
4. Step 4: Simplify right side
   21,967.14x = 380,048,428.55
5. Step 5: Solve for x
   x = 380,048,428.55/21,967.14
6. Step 6: Final answer
   x = 17,300.77