Finding the Fourth Proportional to 111,105.52, 153,166.10 and 79,219.06

Step by Step Solution

1. Step 1: Write the proportion equation
   111,105.52 : 153,166.10 = 79,219.06 : x
2. Step 2: Convert to fraction form
   111,105.52/153,166.10 = 79,219.06/x
3. Step 3: Cross multiply
   111,105.52x = 153,166.10 × 79,219.06
4. Step 4: Simplify right side
   111,105.52x = 12,133,674,465.87
5. Step 5: Solve for x
   x = 12,133,674,465.87/111,105.52
6. Step 6: Final answer
   x = 109,208.57