Finding the Fourth Proportional to 31,429.82, 47,147.70 and 10,361.18

Step by Step Solution

1. Step 1: Write the proportion equation
   31,429.82 : 47,147.70 = 10,361.18 : x
2. Step 2: Convert to fraction form
   31,429.82/47,147.70 = 10,361.18/x
3. Step 3: Cross multiply
   31,429.82x = 47,147.70 × 10,361.18
4. Step 4: Simplify right side
   31,429.82x = 488,505,806.29
5. Step 5: Solve for x
   x = 488,505,806.29/31,429.82
6. Step 6: Final answer
   x = 15,542.75