Finding the Fourth Proportional to 111,514.84, 153,678.06 and 109,465.20

Step by Step Solution

1. Step 1: Write the proportion equation
   111,514.84 : 153,678.06 = 109,465.20 : x
2. Step 2: Convert to fraction form
   111,514.84/153,678.06 = 109,465.20/x
3. Step 3: Cross multiply
   111,514.84x = 153,678.06 × 109,465.20
4. Step 4: Simplify right side
   111,514.84x = 16,822,399,573.51
5. Step 5: Solve for x
   x = 16,822,399,573.51/111,514.84
6. Step 6: Final answer
   x = 150,853.46