Finding the Fourth Proportional to 119,288, 164,617.76 and 66,296

Step by Step Solution

1. Step 1: Write the proportion equation
   119,288 : 164,617.76 = 66,296 : x
2. Step 2: Convert to fraction form
   119,288/164,617.76 = 66,296/x
3. Step 3: Cross multiply
   119,288x = 164,617.76 × 66,296
4. Step 4: Simplify right side
   119,288x = 10,913,499,016.96
5. Step 5: Solve for x
   x = 10,913,499,016.96/119,288
6. Step 6: Final answer
   x = 91,488.66