Finding the Fourth Proportional to 30,554.28, 42,162.72 and 16,941.30

Step by Step Solution

1. Step 1: Write the proportion equation
   30,554.28 : 42,162.72 = 16,941.30 : x
2. Step 2: Convert to fraction form
   30,554.28/42,162.72 = 16,941.30/x
3. Step 3: Cross multiply
   30,554.28x = 42,162.72 × 16,941.30
4. Step 4: Simplify right side
   30,554.28x = 714,291,288.34
5. Step 5: Solve for x
   x = 714,291,288.34/30,554.28
6. Step 6: Final answer
   x = 23,377.78