Finding the Fourth Proportional to 105,009.30, 157,544.46 and 33,930.45

Step by Step Solution

1. Step 1: Write the proportion equation
   105,009.30 : 157,544.46 = 33,930.45 : x
2. Step 2: Convert to fraction form
   105,009.30/157,544.46 = 33,930.45/x
3. Step 3: Cross multiply
   105,009.30x = 157,544.46 × 33,930.45
4. Step 4: Simplify right side
   105,009.30x = 5,345,554,422.81
5. Step 5: Solve for x
   x = 5,345,554,422.81/105,009.30
6. Step 6: Final answer
   x = 50,905.53