Finding the Fourth Proportional to 30,641.06, 42,283.71 and 17,213.78

Step by Step Solution

1. Step 1: Write the proportion equation
   30,641.06 : 42,283.71 = 17,213.78 : x
2. Step 2: Convert to fraction form
   30,641.06/42,283.71 = 17,213.78/x
3. Step 3: Cross multiply
   30,641.06x = 42,283.71 × 17,213.78
4. Step 4: Simplify right side
   30,641.06x = 727,862,481.52
5. Step 5: Solve for x
   x = 727,862,481.52/30,641.06
6. Step 6: Final answer
   x = 23,754.48