Finding the Fourth Proportional to 51,118.18, 70,546.31 and 30,976.82

Step by Step Solution

1. Step 1: Write the proportion equation
   51,118.18 : 70,546.31 = 30,976.82 : x
2. Step 2: Convert to fraction form
   51,118.18/70,546.31 = 30,976.82/x
3. Step 3: Cross multiply
   51,118.18x = 70,546.31 × 30,976.82
4. Step 4: Simplify right side
   51,118.18x = 2,185,300,191.65
5. Step 5: Solve for x
   x = 2,185,300,191.65/51,118.18
6. Step 6: Final answer
   x = 42,749.96