Finding the Fourth Proportional to 81,025.74, 111,798.72 and 49,176.90

Step by Step Solution

1. Step 1: Write the proportion equation
   81,025.74 : 111,798.72 = 49,176.90 : x
2. Step 2: Convert to fraction form
   81,025.74/111,798.72 = 49,176.90/x
3. Step 3: Cross multiply
   81,025.74x = 111,798.72 × 49,176.90
4. Step 4: Simplify right side
   81,025.74x = 5,497,914,473.57
5. Step 5: Solve for x
   x = 5,497,914,473.57/81,025.74
6. Step 6: Final answer
   x = 67,853.92