Finding the Fourth Proportional to 78,828.70, 108,783.99 and 43,019.46

Step by Step Solution

1. Step 1: Write the proportion equation
   78,828.70 : 108,783.99 = 43,019.46 : x
2. Step 2: Convert to fraction form
   78,828.70/108,783.99 = 43,019.46/x
3. Step 3: Cross multiply
   78,828.70x = 108,783.99 × 43,019.46
4. Step 4: Simplify right side
   78,828.70x = 4,679,828,506.45
5. Step 5: Solve for x
   x = 4,679,828,506.45/78,828.70
6. Step 6: Final answer
   x = 59,367.06