Finding the Fourth Proportional to 21,146.84, 29,182.24 and 12,194.72

Step by Step Solution

1. Step 1: Write the proportion equation
   21,146.84 : 29,182.24 = 12,194.72 : x
2. Step 2: Convert to fraction form
   21,146.84/29,182.24 = 12,194.72/x
3. Step 3: Cross multiply
   21,146.84x = 29,182.24 × 12,194.72
4. Step 4: Simplify right side
   21,146.84x = 355,869,245.77
5. Step 5: Solve for x
   x = 355,869,245.77/21,146.84
6. Step 6: Final answer
   x = 16,828.48