Finding the Fourth Proportional to 78,949.58, 108,950.82 and 43,140.20

Step by Step Solution

1. Step 1: Write the proportion equation
   78,949.58 : 108,950.82 = 43,140.20 : x
2. Step 2: Convert to fraction form
   78,949.58/108,950.82 = 43,140.20/x
3. Step 3: Cross multiply
   78,949.58x = 108,950.82 × 43,140.20
4. Step 4: Simplify right side
   78,949.58x = 4,700,160,164.96
5. Step 5: Solve for x
   x = 4,700,160,164.96/78,949.58
6. Step 6: Final answer
   x = 59,533.69