Finding the Fourth Proportional to 35,641.79, 53,440.12 and 30,356.09

Step by Step Solution

1. Step 1: Write the proportion equation
   35,641.79 : 53,440.12 = 30,356.09 : x
2. Step 2: Convert to fraction form
   35,641.79/53,440.12 = 30,356.09/x
3. Step 3: Cross multiply
   35,641.79x = 53,440.12 × 30,356.09
4. Step 4: Simplify right side
   35,641.79x = 1,622,233,092.33
5. Step 5: Solve for x
   x = 1,622,233,092.33/35,641.79
6. Step 6: Final answer
   x = 45,514.92