Finding the Fourth Proportional to 49,043.35, 67,669.05 and 31,131.82

Step by Step Solution

1. Step 1: Write the proportion equation
   49,043.35 : 67,669.05 = 31,131.82 : x
2. Step 2: Convert to fraction form
   49,043.35/67,669.05 = 31,131.82/x
3. Step 3: Cross multiply
   49,043.35x = 67,669.05 × 31,131.82
4. Step 4: Simplify right side
   49,043.35x = 2,106,660,684.17
5. Step 5: Solve for x
   x = 2,106,660,684.17/49,043.35
6. Step 6: Final answer
   x = 42,955.07