Finding the Fourth Proportional to 21,631.98, 29,852.06 and 12,200.46

Step by Step Solution

1. Step 1: Write the proportion equation
   21,631.98 : 29,852.06 = 12,200.46 : x
2. Step 2: Convert to fraction form
   21,631.98/29,852.06 = 12,200.46/x
3. Step 3: Cross multiply
   21,631.98x = 29,852.06 × 12,200.46
4. Step 4: Simplify right side
   21,631.98x = 364,208,863.95
5. Step 5: Solve for x
   x = 364,208,863.95/21,631.98
6. Step 6: Final answer
   x = 16,836.59