Finding the Fourth Proportional to 30,821.95, 42,533.59 and 17,392.86

Step by Step Solution

1. Step 1: Write the proportion equation
   30,821.95 : 42,533.59 = 17,392.86 : x
2. Step 2: Convert to fraction form
   30,821.95/42,533.59 = 17,392.86/x
3. Step 3: Cross multiply
   30,821.95x = 42,533.59 × 17,392.86
4. Step 4: Simplify right side
   30,821.95x = 739,780,776.17
5. Step 5: Solve for x
   x = 739,780,776.17/30,821.95
6. Step 6: Final answer
   x = 24,001.75