Finding the Fourth Proportional to 83,010.90, 124,406.82 and 30,369.72

Step by Step Solution

1. Step 1: Write the proportion equation
   83,010.90 : 124,406.82 = 30,369.72 : x
2. Step 2: Convert to fraction form
   83,010.90/124,406.82 = 30,369.72/x
3. Step 3: Cross multiply
   83,010.90x = 124,406.82 × 30,369.72
4. Step 4: Simplify right side
   83,010.90x = 3,778,200,289.49
5. Step 5: Solve for x
   x = 3,778,200,289.49/83,010.90
6. Step 6: Final answer
   x = 45,514.51