Finding the Fourth Proportional to 78,168.28, 107,928.59 and 47,994.52

Step by Step Solution

1. Step 1: Write the proportion equation
   78,168.28 : 107,928.59 = 47,994.52 : x
2. Step 2: Convert to fraction form
   78,168.28/107,928.59 = 47,994.52/x
3. Step 3: Cross multiply
   78,168.28x = 107,928.59 × 47,994.52
4. Step 4: Simplify right side
   78,168.28x = 5,179,980,871.33
5. Step 5: Solve for x
   x = 5,179,980,871.33/78,168.28
6. Step 6: Final answer
   x = 66,267.04