Finding the Fourth Proportional to 116,700.14, 161,036.60 and 65,696.58

Step by Step Solution

1. Step 1: Write the proportion equation
   116,700.14 : 161,036.60 = 65,696.58 : x
2. Step 2: Convert to fraction form
   116,700.14/161,036.60 = 65,696.58/x
3. Step 3: Cross multiply
   116,700.14x = 161,036.60 × 65,696.58
4. Step 4: Simplify right side
   116,700.14x = 10,579,553,874.83
5. Step 5: Solve for x
   x = 10,579,553,874.83/116,700.14
6. Step 6: Final answer
   x = 90,655.88