Finding the Fourth Proportional to 111,630.84, 154,050.84 and 65,678.64

Step by Step Solution

1. Step 1: Write the proportion equation
   111,630.84 : 154,050.84 = 65,678.64 : x
2. Step 2: Convert to fraction form
   111,630.84/154,050.84 = 65,678.64/x
3. Step 3: Cross multiply
   111,630.84x = 154,050.84 × 65,678.64
4. Step 4: Simplify right side
   111,630.84x = 10,117,849,662.06
5. Step 5: Solve for x
   x = 10,117,849,662.06/111,630.84
6. Step 6: Final answer
   x = 90,636.69