Finding the Fourth Proportional to 31,196.33, 46,775.25 and 13,438.29

Step by Step Solution

1. Step 1: Write the proportion equation
   31,196.33 : 46,775.25 = 13,438.29 : x
2. Step 2: Convert to fraction form
   31,196.33/46,775.25 = 13,438.29/x
3. Step 3: Cross multiply
   31,196.33x = 46,775.25 × 13,438.29
4. Step 4: Simplify right side
   31,196.33x = 628,579,374.32
5. Step 5: Solve for x
   x = 628,579,374.32/31,196.33
6. Step 6: Final answer
   x = 20,149.14