Finding the Fourth Proportional to 119,111.10, 164,373.64 and 65,399.59

Step by Step Solution

1. Step 1: Write the proportion equation
   119,111.10 : 164,373.64 = 65,399.59 : x
2. Step 2: Convert to fraction form
   119,111.10/164,373.64 = 65,399.59/x
3. Step 3: Cross multiply
   119,111.10x = 164,373.64 × 65,399.59
4. Step 4: Simplify right side
   119,111.10x = 10,749,968,704.78
5. Step 5: Solve for x
   x = 10,749,968,704.78/119,111.10
6. Step 6: Final answer
   x = 90,251.61