Finding the Fourth Proportional to 21,766.76, 30,037.74 and 12,335.12

Step by Step Solution

1. Step 1: Write the proportion equation
   21,766.76 : 30,037.74 = 12,335.12 : x
2. Step 2: Convert to fraction form
   21,766.76/30,037.74 = 12,335.12/x
3. Step 3: Cross multiply
   21,766.76x = 30,037.74 × 12,335.12
4. Step 4: Simplify right side
   21,766.76x = 370,519,127.43
5. Step 5: Solve for x
   x = 370,519,127.43/21,766.76
6. Step 6: Final answer
   x = 17,022.25