Finding the Fourth Proportional to 104,758.10, 156,964.35 and 89,206.10

Step by Step Solution

1. Step 1: Write the proportion equation
   104,758.10 : 156,964.35 = 89,206.10 : x
2. Step 2: Convert to fraction form
   104,758.10/156,964.35 = 89,206.10/x
3. Step 3: Cross multiply
   104,758.10x = 156,964.35 × 89,206.10
4. Step 4: Simplify right side
   104,758.10x = 14,002,177,502.54
5. Step 5: Solve for x
   x = 14,002,177,502.54/104,758.10
6. Step 6: Final answer
   x = 133,662.00