Finding the Fourth Proportional to 50,931.39, 70,281.91 and 30,799.37

Step by Step Solution

1. Step 1: Write the proportion equation
   50,931.39 : 70,281.91 = 30,799.37 : x
2. Step 2: Convert to fraction form
   50,931.39/70,281.91 = 30,799.37/x
3. Step 3: Cross multiply
   50,931.39x = 70,281.91 × 30,799.37
4. Step 4: Simplify right side
   50,931.39x = 2,164,638,764.60
5. Step 5: Solve for x
   x = 2,164,638,764.60/50,931.39
6. Step 6: Final answer
   x = 42,501.07