Finding the Fourth Proportional to 111,663.38, 154,090.40 and 69,225.86

Step by Step Solution

1. Step 1: Write the proportion equation
   111,663.38 : 154,090.40 = 69,225.86 : x
2. Step 2: Convert to fraction form
   111,663.38/154,090.40 = 69,225.86/x
3. Step 3: Cross multiply
   111,663.38x = 154,090.40 × 69,225.86
4. Step 4: Simplify right side
   111,663.38x = 10,667,040,457.74
5. Step 5: Solve for x
   x = 10,667,040,457.74/111,663.38
6. Step 6: Final answer
   x = 95,528.55