Finding the Fourth Proportional to 21,595.49, 29,802.17 and 12,164.39

Step by Step Solution

1. Step 1: Write the proportion equation
   21,595.49 : 29,802.17 = 12,164.39 : x
2. Step 2: Convert to fraction form
   21,595.49/29,802.17 = 12,164.39/x
3. Step 3: Cross multiply
   21,595.49x = 29,802.17 × 12,164.39
4. Step 4: Simplify right side
   21,595.49x = 362,525,218.73
5. Step 5: Solve for x
   x = 362,525,218.73/21,595.49
6. Step 6: Final answer
   x = 16,787.08