Finding the Fourth Proportional to 104,766.10, 156,976.35 and 89,214.10

Step by Step Solution

1. Step 1: Write the proportion equation
   104,766.10 : 156,976.35 = 89,214.10 : x
2. Step 2: Convert to fraction form
   104,766.10/156,976.35 = 89,214.10/x
3. Step 3: Cross multiply
   104,766.10x = 156,976.35 × 89,214.10
4. Step 4: Simplify right side
   104,766.10x = 14,004,503,786.54
5. Step 5: Solve for x
   x = 14,004,503,786.54/104,766.10
6. Step 6: Final answer
   x = 133,674.00