Finding the Fourth Proportional to 83,175, 124,811.90 and 30,621.39

Step by Step Solution

1. Step 1: Write the proportion equation
   83,175 : 124,811.90 = 30,621.39 : x
2. Step 2: Convert to fraction form
   83,175/124,811.90 = 30,621.39/x
3. Step 3: Cross multiply
   83,175x = 124,811.90 × 30,621.39
4. Step 4: Simplify right side
   83,175x = 3,821,913,866.54
5. Step 5: Solve for x
   x = 3,821,913,866.54/83,175
6. Step 6: Final answer
   x = 45,950.27