Finding the Fourth Proportional to 83,508.87, 125,279.69 and 30,918.81

Step by Step Solution

1. Step 1: Write the proportion equation
   83,508.87 : 125,279.69 = 30,918.81 : x
2. Step 2: Convert to fraction form
   83,508.87/125,279.69 = 30,918.81/x
3. Step 3: Cross multiply
   83,508.87x = 125,279.69 × 30,918.81
4. Step 4: Simplify right side
   83,508.87x = 3,873,498,777.37
5. Step 5: Solve for x
   x = 3,873,498,777.37/83,508.87
6. Step 6: Final answer
   x = 46,384.28