Finding the Fourth Proportional to 78,821.50, 108,776.28 and 43,013.48

Step by Step Solution

1. Step 1: Write the proportion equation
   78,821.50 : 108,776.28 = 43,013.48 : x
2. Step 2: Convert to fraction form
   78,821.50/108,776.28 = 43,013.48/x
3. Step 3: Cross multiply
   78,821.50x = 108,776.28 × 43,013.48
4. Step 4: Simplify right side
   78,821.50x = 4,678,846,344.25
5. Step 5: Solve for x
   x = 4,678,846,344.25/78,821.50
6. Step 6: Final answer
   x = 59,360.03