Finding the Fourth Proportional to 30,612.95, 42,242.61 and 17,185.69

Step by Step Solution

1. Step 1: Write the proportion equation
   30,612.95 : 42,242.61 = 17,185.69 : x
2. Step 2: Convert to fraction form
   30,612.95/42,242.61 = 17,185.69/x
3. Step 3: Cross multiply
   30,612.95x = 42,242.61 × 17,185.69
4. Step 4: Simplify right side
   30,612.95x = 725,968,279.89
5. Step 5: Solve for x
   x = 725,968,279.89/30,612.95
6. Step 6: Final answer
   x = 23,714.41