Finding the Fourth Proportional to 119,491.76, 164,898.59 and 65,776.50

Step by Step Solution

1. Step 1: Write the proportion equation
   119,491.76 : 164,898.59 = 65,776.50 : x
2. Step 2: Convert to fraction form
   119,491.76/164,898.59 = 65,776.50/x
3. Step 3: Cross multiply
   119,491.76x = 164,898.59 × 65,776.50
4. Step 4: Simplify right side
   119,491.76x = 10,846,451,776.25
5. Step 5: Solve for x
   x = 10,846,451,776.25/119,491.76
6. Step 6: Final answer
   x = 90,771.54