Finding the Fourth Proportional to 21,595.42, 29,801.55 and 12,167.02

Step by Step Solution

1. Step 1: Write the proportion equation
   21,595.42 : 29,801.55 = 12,167.02 : x
2. Step 2: Convert to fraction form
   21,595.42/29,801.55 = 12,167.02/x
3. Step 3: Cross multiply
   21,595.42x = 29,801.55 × 12,167.02
4. Step 4: Simplify right side
   21,595.42x = 362,596,054.88
5. Step 5: Solve for x
   x = 362,596,054.88/21,595.42
6. Step 6: Final answer
   x = 16,790.41