Finding the Fourth Proportional to 78,284.58, 117,444.78 and 33,918.72

Step by Step Solution

1. Step 1: Write the proportion equation
   78,284.58 : 117,444.78 = 33,918.72 : x
2. Step 2: Convert to fraction form
   78,284.58/117,444.78 = 33,918.72/x
3. Step 3: Cross multiply
   78,284.58x = 117,444.78 × 33,918.72
4. Step 4: Simplify right side
   78,284.58x = 3,983,576,608.28
5. Step 5: Solve for x
   x = 3,983,576,608.28/78,284.58
6. Step 6: Final answer
   x = 50,885.84