Finding the Fourth Proportional to 111,868.02, 167,605.16 and 105,208.62

Step by Step Solution

1. Step 1: Write the proportion equation
   111,868.02 : 167,605.16 = 105,208.62 : x
2. Step 2: Convert to fraction form
   111,868.02/167,605.16 = 105,208.62/x
3. Step 3: Cross multiply
   111,868.02x = 167,605.16 × 105,208.62
4. Step 4: Simplify right side
   111,868.02x = 17,633,507,588.48
5. Step 5: Solve for x
   x = 17,633,507,588.48/111,868.02
6. Step 6: Final answer
   x = 157,627.78