Finding the Fourth Proportional to 31,112.37, 46,470.20 and 28,146.24

Step by Step Solution

1. Step 1: Write the proportion equation
   31,112.37 : 46,470.20 = 28,146.24 : x
2. Step 2: Convert to fraction form
   31,112.37/46,470.20 = 28,146.24/x
3. Step 3: Cross multiply
   31,112.37x = 46,470.20 × 28,146.24
4. Step 4: Simplify right side
   31,112.37x = 1,307,961,261.32
5. Step 5: Solve for x
   x = 1,307,961,261.32/31,112.37
6. Step 6: Final answer
   x = 42,039.91