Finding the Fourth Proportional to 49,042.06, 67,688.33 and 31,133.23

Step by Step Solution

1. Step 1: Write the proportion equation
   49,042.06 : 67,688.33 = 31,133.23 : x
2. Step 2: Convert to fraction form
   49,042.06/67,688.33 = 31,133.23/x
3. Step 3: Cross multiply
   49,042.06x = 67,688.33 × 31,133.23
4. Step 4: Simplify right side
   49,042.06x = 2,107,356,021.32
5. Step 5: Solve for x
   x = 2,107,356,021.32/49,042.06
6. Step 6: Final answer
   x = 42,970.38