Finding the Fourth Proportional to 30,830.91, 42,548.90 and 17,403.32

Step by Step Solution

1. Step 1: Write the proportion equation
   30,830.91 : 42,548.90 = 17,403.32 : x
2. Step 2: Convert to fraction form
   30,830.91/42,548.90 = 17,403.32/x
3. Step 3: Cross multiply
   30,830.91x = 42,548.90 × 17,403.32
4. Step 4: Simplify right side
   30,830.91x = 740,491,822.59
5. Step 5: Solve for x
   x = 740,491,822.59/30,830.91
6. Step 6: Final answer
   x = 24,017.84