Finding the Fourth Proportional to 79,456.82, 109,619.06 and 51,178.92

Step by Step Solution

1. Step 1: Write the proportion equation
   79,456.82 : 109,619.06 = 51,178.92 : x
2. Step 2: Convert to fraction form
   79,456.82/109,619.06 = 51,178.92/x
3. Step 3: Cross multiply
   79,456.82x = 109,619.06 × 51,178.92
4. Step 4: Simplify right side
   79,456.82x = 5,610,185,102.22
5. Step 5: Solve for x
   x = 5,610,185,102.22/79,456.82
6. Step 6: Final answer
   x = 70,606.72