Finding the Fourth Proportional to 111,958.53, 154,699.50 and 89,483

Step by Step Solution

1. Step 1: Write the proportion equation
   111,958.53 : 154,699.50 = 89,483 : x
2. Step 2: Convert to fraction form
   111,958.53/154,699.50 = 89,483/x
3. Step 3: Cross multiply
   111,958.53x = 154,699.50 × 89,483
4. Step 4: Simplify right side
   111,958.53x = 13,842,975,358.50
5. Step 5: Solve for x
   x = 13,842,975,358.50/111,958.53
6. Step 6: Final answer
   x = 123,643.78