Finding the Fourth Proportional to 30,790.28, 42,488.06 and 17,364.84

Step by Step Solution

1. Step 1: Write the proportion equation
   30,790.28 : 42,488.06 = 17,364.84 : x
2. Step 2: Convert to fraction form
   30,790.28/42,488.06 = 17,364.84/x
3. Step 3: Cross multiply
   30,790.28x = 42,488.06 × 17,364.84
4. Step 4: Simplify right side
   30,790.28x = 737,798,363.81
5. Step 5: Solve for x
   x = 737,798,363.81/30,790.28
6. Step 6: Final answer
   x = 23,962.05