Finding the Fourth Proportional to 20,142.38, 27,803.98 and 17,298.34

Step by Step Solution

1. Step 1: Write the proportion equation
   20,142.38 : 27,803.98 = 17,298.34 : x
2. Step 2: Convert to fraction form
   20,142.38/27,803.98 = 17,298.34/x
3. Step 3: Cross multiply
   20,142.38x = 27,803.98 × 17,298.34
4. Step 4: Simplify right side
   20,142.38x = 480,962,651.51
5. Step 5: Solve for x
   x = 480,962,651.51/20,142.38
6. Step 6: Final answer
   x = 23,878.14