Finding the Fourth Proportional to 86,947.20, 119,994.56 and 49,228.16

Step by Step Solution

1. Step 1: Write the proportion equation
   86,947.20 : 119,994.56 = 49,228.16 : x
2. Step 2: Convert to fraction form
   86,947.20/119,994.56 = 49,228.16/x
3. Step 3: Cross multiply
   86,947.20x = 119,994.56 × 49,228.16
4. Step 4: Simplify right side
   86,947.20x = 5,907,111,398.81
5. Step 5: Solve for x
   x = 5,907,111,398.81/86,947.20
6. Step 6: Final answer
   x = 67,939.06