Finding the Fourth Proportional to 111,364.49, 153,705.32 and 66,067.62

Step by Step Solution

1. Step 1: Write the proportion equation
   111,364.49 : 153,705.32 = 66,067.62 : x
2. Step 2: Convert to fraction form
   111,364.49/153,705.32 = 66,067.62/x
3. Step 3: Cross multiply
   111,364.49x = 153,705.32 × 66,067.62
4. Step 4: Simplify right side
   111,364.49x = 10,154,944,838.91
5. Step 5: Solve for x
   x = 10,154,944,838.91/111,364.49
6. Step 6: Final answer
   x = 91,186.56