Finding the Fourth Proportional to 78,965.16, 108,968.82 and 43,155.60

Step by Step Solution

1. Step 1: Write the proportion equation
   78,965.16 : 108,968.82 = 43,155.60 : x
2. Step 2: Convert to fraction form
   78,965.16/108,968.82 = 43,155.60/x
3. Step 3: Cross multiply
   78,965.16x = 108,968.82 × 43,155.60
4. Step 4: Simplify right side
   78,965.16x = 4,702,614,808.39
5. Step 5: Solve for x
   x = 4,702,614,808.39/78,965.16
6. Step 6: Final answer
   x = 59,553.03