Finding the Fourth Proportional to 119,111.14, 164,373.71 and 65,399.64

Step by Step Solution

1. Step 1: Write the proportion equation
   119,111.14 : 164,373.71 = 65,399.64 : x
2. Step 2: Convert to fraction form
   119,111.14/164,373.71 = 65,399.64/x
3. Step 3: Cross multiply
   119,111.14x = 164,373.71 × 65,399.64
4. Step 4: Simplify right side
   119,111.14x = 10,749,980,516.06
5. Step 5: Solve for x
   x = 10,749,980,516.06/119,111.14
6. Step 6: Final answer
   x = 90,251.68