Finding the Fourth Proportional to 30,845.90, 42,565.61 and 17,419.88

Step by Step Solution

1. Step 1: Write the proportion equation
   30,845.90 : 42,565.61 = 17,419.88 : x
2. Step 2: Convert to fraction form
   30,845.90/42,565.61 = 17,419.88/x
3. Step 3: Cross multiply
   30,845.90x = 42,565.61 × 17,419.88
4. Step 4: Simplify right side
   30,845.90x = 741,487,649.05
5. Step 5: Solve for x
   x = 741,487,649.05/30,845.90
6. Step 6: Final answer
   x = 24,038.45