Finding the Fourth Proportional to 111,168.36, 153,500.82 and 102,667.36

Step by Step Solution

1. Step 1: Write the proportion equation
   111,168.36 : 153,500.82 = 102,667.36 : x
2. Step 2: Convert to fraction form
   111,168.36/153,500.82 = 102,667.36/x
3. Step 3: Cross multiply
   111,168.36x = 153,500.82 × 102,667.36
4. Step 4: Simplify right side
   111,168.36x = 15,759,523,947.24
5. Step 5: Solve for x
   x = 15,759,523,947.24/111,168.36
6. Step 6: Final answer
   x = 141,762.67