Finding the Fourth Proportional to 111,863.01, 167,597.69 and 105,203.60

Step by Step Solution

1. Step 1: Write the proportion equation
   111,863.01 : 167,597.69 = 105,203.60 : x
2. Step 2: Convert to fraction form
   111,863.01/167,597.69 = 105,203.60/x
3. Step 3: Cross multiply
   111,863.01x = 167,597.69 × 105,203.60
4. Step 4: Simplify right side
   111,863.01x = 17,631,878,975.68
5. Step 5: Solve for x
   x = 17,631,878,975.68/111,863.01
6. Step 6: Final answer
   x = 157,620.28