Finding the Fourth Proportional to 40,118.09, 55,363.83 and 21,969.58

Step by Step Solution

1. Step 1: Write the proportion equation
   40,118.09 : 55,363.83 = 21,969.58 : x
2. Step 2: Convert to fraction form
   40,118.09/55,363.83 = 21,969.58/x
3. Step 3: Cross multiply
   40,118.09x = 55,363.83 × 21,969.58
4. Step 4: Simplify right side
   40,118.09x = 1,216,319,705.62
5. Step 5: Solve for x
   x = 1,216,319,705.62/40,118.09
6. Step 6: Final answer
   x = 30,318.49