Finding the Fourth Proportional to 78,826.69, 108,783.15 and 43,019.02

Step by Step Solution

1. Step 1: Write the proportion equation
   78,826.69 : 108,783.15 = 43,019.02 : x
2. Step 2: Convert to fraction form
   78,826.69/108,783.15 = 43,019.02/x
3. Step 3: Cross multiply
   78,826.69x = 108,783.15 × 43,019.02
4. Step 4: Simplify right side
   78,826.69x = 4,679,743,961.60
5. Step 5: Solve for x
   x = 4,679,743,961.60/78,826.69
6. Step 6: Final answer
   x = 59,367.51