Finding the Fourth Proportional to 30,884.20, 46,321.98 and 10,105

Step by Step Solution

1. Step 1: Write the proportion equation
   30,884.20 : 46,321.98 = 10,105 : x
2. Step 2: Convert to fraction form
   30,884.20/46,321.98 = 10,105/x
3. Step 3: Cross multiply
   30,884.20x = 46,321.98 × 10,105
4. Step 4: Simplify right side
   30,884.20x = 468,083,607.90
5. Step 5: Solve for x
   x = 468,083,607.90/30,884.20
6. Step 6: Final answer
   x = 15,156.09