Finding the Fourth Proportional to 119,570.16, 165,007.86 and 65,857.02

Step by Step Solution

1. Step 1: Write the proportion equation
   119,570.16 : 165,007.86 = 65,857.02 : x
2. Step 2: Convert to fraction form
   119,570.16/165,007.86 = 65,857.02/x
3. Step 3: Cross multiply
   119,570.16x = 165,007.86 × 65,857.02
4. Step 4: Simplify right side
   119,570.16x = 10,866,925,936.18
5. Step 5: Solve for x
   x = 10,866,925,936.18/119,570.16
6. Step 6: Final answer
   x = 90,883.26