Finding the Fourth Proportional to 109,105.80, 150,636.33 and 70,360.95

Step by Step Solution

1. Step 1: Write the proportion equation
   109,105.80 : 150,636.33 = 70,360.95 : x
2. Step 2: Convert to fraction form
   109,105.80/150,636.33 = 70,360.95/x
3. Step 3: Cross multiply
   109,105.80x = 150,636.33 × 70,360.95
4. Step 4: Simplify right side
   109,105.80x = 10,598,915,283.31
5. Step 5: Solve for x
   x = 10,598,915,283.31/109,105.80
6. Step 6: Final answer
   x = 97,143.46