Finding the Fourth Proportional to 30,729.92, 42,407.27 and 17,985.52

Step by Step Solution

1. Step 1: Write the proportion equation
   30,729.92 : 42,407.27 = 17,985.52 : x
2. Step 2: Convert to fraction form
   30,729.92/42,407.27 = 17,985.52/x
3. Step 3: Cross multiply
   30,729.92x = 42,407.27 × 17,985.52
4. Step 4: Simplify right side
   30,729.92x = 762,716,901.94
5. Step 5: Solve for x
   x = 762,716,901.94/30,729.92
6. Step 6: Final answer
   x = 24,820.01