Finding the Fourth Proportional to 111,674.81, 154,147.15 and 71,496.79

Step by Step Solution

1. Step 1: Write the proportion equation
   111,674.81 : 154,147.15 = 71,496.79 : x
2. Step 2: Convert to fraction form
   111,674.81/154,147.15 = 71,496.79/x
3. Step 3: Cross multiply
   111,674.81x = 154,147.15 × 71,496.79
4. Step 4: Simplify right side
   111,674.81x = 11,021,026,028.71
5. Step 5: Solve for x
   x = 11,021,026,028.71/111,674.81
6. Step 6: Final answer
   x = 98,688.56