Finding the Fourth Proportional to 78,969.83, 108,978.37 and 43,159.84

Step by Step Solution

1. Step 1: Write the proportion equation
   78,969.83 : 108,978.37 = 43,159.84 : x
2. Step 2: Convert to fraction form
   78,969.83/108,978.37 = 43,159.84/x
3. Step 3: Cross multiply
   78,969.83x = 108,978.37 × 43,159.84
4. Step 4: Simplify right side
   78,969.83x = 4,703,489,012.66
5. Step 5: Solve for x
   x = 4,703,489,012.66/78,969.83
6. Step 6: Final answer
   x = 59,560.58