Finding the Fourth Proportional to 31,156.94, 46,725.41 and 13,382.78

Step by Step Solution

1. Step 1: Write the proportion equation
   31,156.94 : 46,725.41 = 13,382.78 : x
2. Step 2: Convert to fraction form
   31,156.94/46,725.41 = 13,382.78/x
3. Step 3: Cross multiply
   31,156.94x = 46,725.41 × 13,382.78
4. Step 4: Simplify right side
   31,156.94x = 625,315,698.71
5. Step 5: Solve for x
   x = 625,315,698.71/31,156.94
6. Step 6: Final answer
   x = 20,069.87