Finding the Fourth Proportional to 111,980.40, 154,527.12 and 69,538.02

Step by Step Solution

1. Step 1: Write the proportion equation
   111,980.40 : 154,527.12 = 69,538.02 : x
2. Step 2: Convert to fraction form
   111,980.40/154,527.12 = 69,538.02/x
3. Step 3: Cross multiply
   111,980.40x = 154,527.12 × 69,538.02
4. Step 4: Simplify right side
   111,980.40x = 10,745,509,961.10
5. Step 5: Solve for x
   x = 10,745,509,961.10/111,980.40
6. Step 6: Final answer
   x = 95,958.85