Finding the Fourth Proportional to 79,117.82, 109,179.87 and 45,137.31

Step by Step Solution

1. Step 1: Write the proportion equation
   79,117.82 : 109,179.87 = 45,137.31 : x
2. Step 2: Convert to fraction form
   79,117.82/109,179.87 = 45,137.31/x
3. Step 3: Cross multiply
   79,117.82x = 109,179.87 × 45,137.31
4. Step 4: Simplify right side
   79,117.82x = 4,928,085,204.89
5. Step 5: Solve for x
   x = 4,928,085,204.89/79,117.82
6. Step 6: Final answer
   x = 62,287.93