Finding the Fourth Proportional to 30,442.84, 42,009.44 and 17,011.42

Step by Step Solution

1. Step 1: Write the proportion equation
   30,442.84 : 42,009.44 = 17,011.42 : x
2. Step 2: Convert to fraction form
   30,442.84/42,009.44 = 17,011.42/x
3. Step 3: Cross multiply
   30,442.84x = 42,009.44 × 17,011.42
4. Step 4: Simplify right side
   30,442.84x = 714,640,037.72
5. Step 5: Solve for x
   x = 714,640,037.72/30,442.84
6. Step 6: Final answer
   x = 23,474.82