Finding the Fourth Proportional to 78,967.09, 108,971.31 and 43,158.34

Step by Step Solution

1. Step 1: Write the proportion equation
   78,967.09 : 108,971.31 = 43,158.34 : x
2. Step 2: Convert to fraction form
   78,967.09/108,971.31 = 43,158.34/x
3. Step 3: Cross multiply
   78,967.09x = 108,971.31 × 43,158.34
4. Step 4: Simplify right side
   78,967.09x = 4,703,020,847.23
5. Step 5: Solve for x
   x = 4,703,020,847.23/78,967.09
6. Step 6: Final answer
   x = 59,556.72