Finding the Fourth Proportional to 111,957.53, 154,698.12 and 89,482

Step by Step Solution

1. Step 1: Write the proportion equation
   111,957.53 : 154,698.12 = 89,482 : x
2. Step 2: Convert to fraction form
   111,957.53/154,698.12 = 89,482/x
3. Step 3: Cross multiply
   111,957.53x = 154,698.12 × 89,482
4. Step 4: Simplify right side
   111,957.53x = 13,842,697,173.84
5. Step 5: Solve for x
   x = 13,842,697,173.84/111,957.53
6. Step 6: Final answer
   x = 123,642.40