Finding the Fourth Proportional to 308,616.27, 462,877.63 and 83,994.21

Step by Step Solution

1. Step 1: Write the proportion equation
   308,616.27 : 462,877.63 = 83,994.21 : x
2. Step 2: Convert to fraction form
   308,616.27/462,877.63 = 83,994.21/x
3. Step 3: Cross multiply
   308,616.27x = 462,877.63 × 83,994.21
4. Step 4: Simplify right side
   308,616.27x = 38,879,040,095.62
5. Step 5: Solve for x
   x = 38,879,040,095.62/308,616.27
6. Step 6: Final answer
   x = 125,978.58