Finding the Fourth Proportional to 79,680.16, 109,957.98 and 43,870.76

Step by Step Solution

1. Step 1: Write the proportion equation
   79,680.16 : 109,957.98 = 43,870.76 : x
2. Step 2: Convert to fraction form
   79,680.16/109,957.98 = 43,870.76/x
3. Step 3: Cross multiply
   79,680.16x = 109,957.98 × 43,870.76
4. Step 4: Simplify right side
   79,680.16x = 4,823,940,150.66
5. Step 5: Solve for x
   x = 4,823,940,150.66/79,680.16
6. Step 6: Final answer
   x = 60,541.30