Finding the Fourth Proportional to 30,544.15, 42,152.62 and 17,119.72

Step by Step Solution

1. Step 1: Write the proportion equation
   30,544.15 : 42,152.62 = 17,119.72 : x
2. Step 2: Convert to fraction form
   30,544.15/42,152.62 = 17,119.72/x
3. Step 3: Cross multiply
   30,544.15x = 42,152.62 × 17,119.72
4. Step 4: Simplify right side
   30,544.15x = 721,641,051.67
5. Step 5: Solve for x
   x = 721,641,051.67/30,544.15
6. Step 6: Final answer
   x = 23,626.16