Finding the Fourth Proportional to 111,091.88, 153,147.30 and 79,205.44

Step by Step Solution

1. Step 1: Write the proportion equation
   111,091.88 : 153,147.30 = 79,205.44 : x
2. Step 2: Convert to fraction form
   111,091.88/153,147.30 = 79,205.44/x
3. Step 3: Cross multiply
   111,091.88x = 153,147.30 × 79,205.44
4. Step 4: Simplify right side
   111,091.88x = 12,130,099,281.31
5. Step 5: Solve for x
   x = 12,130,099,281.31/111,091.88
6. Step 6: Final answer
   x = 109,189.79