Finding the Fourth Proportional to 79,680.83, 109,959.60 and 43,870.83

Step by Step Solution

1. Step 1: Write the proportion equation
   79,680.83 : 109,959.60 = 43,870.83 : x
2. Step 2: Convert to fraction form
   79,680.83/109,959.60 = 43,870.83/x
3. Step 3: Cross multiply
   79,680.83x = 109,959.60 × 43,870.83
4. Step 4: Simplify right side
   79,680.83x = 4,824,018,918.47
5. Step 5: Solve for x
   x = 4,824,018,918.47/79,680.83
6. Step 6: Final answer
   x = 60,541.78