Finding the Fourth Proportional to 83,150.20, 124,744.89 and 26,990.31

Step by Step Solution

1. Step 1: Write the proportion equation
   83,150.20 : 124,744.89 = 26,990.31 : x
2. Step 2: Convert to fraction form
   83,150.20/124,744.89 = 26,990.31/x
3. Step 3: Cross multiply
   83,150.20x = 124,744.89 × 26,990.31
4. Step 4: Simplify right side
   83,150.20x = 3,366,903,593.29
5. Step 5: Solve for x
   x = 3,366,903,593.29/83,150.20
6. Step 6: Final answer
   x = 40,491.83