Finding the Fourth Proportional to 21,585.38, 29,804.72 and 16,883.06

Step by Step Solution

1. Step 1: Write the proportion equation
   21,585.38 : 29,804.72 = 16,883.06 : x
2. Step 2: Convert to fraction form
   21,585.38/29,804.72 = 16,883.06/x
3. Step 3: Cross multiply
   21,585.38x = 29,804.72 × 16,883.06
4. Step 4: Simplify right side
   21,585.38x = 503,194,876.04
5. Step 5: Solve for x
   x = 503,194,876.04/21,585.38
6. Step 6: Final answer
   x = 23,311.84