Finding the Fourth Proportional to 21,823.02, 30,116.61 and 12,392.46

Step by Step Solution

1. Step 1: Write the proportion equation
   21,823.02 : 30,116.61 = 12,392.46 : x
2. Step 2: Convert to fraction form
   21,823.02/30,116.61 = 12,392.46/x
3. Step 3: Cross multiply
   21,823.02x = 30,116.61 × 12,392.46
4. Step 4: Simplify right side
   21,823.02x = 373,218,884.76
5. Step 5: Solve for x
   x = 373,218,884.76/21,823.02
6. Step 6: Final answer
   x = 17,102.07