Finding the Fourth Proportional to 111,139.73, 153,386.57 and 82,796.21

Step by Step Solution

1. Step 1: Write the proportion equation
   111,139.73 : 153,386.57 = 82,796.21 : x
2. Step 2: Convert to fraction form
   111,139.73/153,386.57 = 82,796.21/x
3. Step 3: Cross multiply
   111,139.73x = 153,386.57 × 82,796.21
4. Step 4: Simplify right side
   111,139.73x = 12,699,826,246.92
5. Step 5: Solve for x
   x = 12,699,826,246.92/111,139.73
6. Step 6: Final answer
   x = 114,269.00