Finding the Fourth Proportional to 161,300.97, 222,619.56 and 116,128.47

Step by Step Solution

1. Step 1: Write the proportion equation
   161,300.97 : 222,619.56 = 116,128.47 : x
2. Step 2: Convert to fraction form
   161,300.97/222,619.56 = 116,128.47/x
3. Step 3: Cross multiply
   161,300.97x = 222,619.56 × 116,128.47
4. Step 4: Simplify right side
   161,300.97x = 25,852,468,894.87
5. Step 5: Solve for x
   x = 25,852,468,894.87/161,300.97
6. Step 6: Final answer
   x = 160,274.73