Finding the Fourth Proportional to 111,981.40, 154,528.50 and 69,539.02

Step by Step Solution

1. Step 1: Write the proportion equation
   111,981.40 : 154,528.50 = 69,539.02 : x
2. Step 2: Convert to fraction form
   111,981.40/154,528.50 = 69,539.02/x
3. Step 3: Cross multiply
   111,981.40x = 154,528.50 × 69,539.02
4. Step 4: Simplify right side
   111,981.40x = 10,745,760,452.07
5. Step 5: Solve for x
   x = 10,745,760,452.07/111,981.40
6. Step 6: Final answer
   x = 95,960.23