Finding the Fourth Proportional to 111,939.35, 156,922.45 and 111,939.35

Step by Step Solution

1. Step 1: Write the proportion equation
   111,939.35 : 156,922.45 = 111,939.35 : x
2. Step 2: Convert to fraction form
   111,939.35/156,922.45 = 111,939.35/x
3. Step 3: Cross multiply
   111,939.35x = 156,922.45 × 111,939.35
4. Step 4: Simplify right side
   111,939.35x = 17,565,797,053.41
5. Step 5: Solve for x
   x = 17,565,797,053.41/111,939.35
6. Step 6: Final answer
   x = 156,922.45