Finding the Fourth Proportional to 21,973.67, 30,288.29 and 17,185.35

Step by Step Solution

1. Step 1: Write the proportion equation
   21,973.67 : 30,288.29 = 17,185.35 : x
2. Step 2: Convert to fraction form
   21,973.67/30,288.29 = 17,185.35/x
3. Step 3: Cross multiply
   21,973.67x = 30,288.29 × 17,185.35
4. Step 4: Simplify right side
   21,973.67x = 520,514,864.55
5. Step 5: Solve for x
   x = 520,514,864.55/21,973.67
6. Step 6: Final answer
   x = 23,688.12