Finding the Fourth Proportional to 21,477.59, 29,639.01 and 12,046.36

Step by Step Solution

1. Step 1: Write the proportion equation
   21,477.59 : 29,639.01 = 12,046.36 : x
2. Step 2: Convert to fraction form
   21,477.59/29,639.01 = 12,046.36/x
3. Step 3: Cross multiply
   21,477.59x = 29,639.01 × 12,046.36
4. Step 4: Simplify right side
   21,477.59x = 357,042,036.31
5. Step 5: Solve for x
   x = 357,042,036.31/21,477.59
6. Step 6: Final answer
   x = 16,623.93