Finding the Fourth Proportional to 30,139.88, 41,595.30 and 17,561.96

Step by Step Solution

1. Step 1: Write the proportion equation
   30,139.88 : 41,595.30 = 17,561.96 : x
2. Step 2: Convert to fraction form
   30,139.88/41,595.30 = 17,561.96/x
3. Step 3: Cross multiply
   30,139.88x = 41,595.30 × 17,561.96
4. Step 4: Simplify right side
   30,139.88x = 730,494,994.79
5. Step 5: Solve for x
   x = 730,494,994.79/30,139.88
6. Step 6: Final answer
   x = 24,236.82