Finding the Fourth Proportional to 83,100.43, 124,617.83 and 30,481.21

Step by Step Solution

1. Step 1: Write the proportion equation
   83,100.43 : 124,617.83 = 30,481.21 : x
2. Step 2: Convert to fraction form
   83,100.43/124,617.83 = 30,481.21/x
3. Step 3: Cross multiply
   83,100.43x = 124,617.83 × 30,481.21
4. Step 4: Simplify right side
   83,100.43x = 3,798,501,622.89
5. Step 5: Solve for x
   x = 3,798,501,622.89/83,100.43
6. Step 6: Final answer
   x = 45,709.77