Finding the Fourth Proportional to 149,958.83, 206,943.59 and 81,976.61

Step by Step Solution

1. Step 1: Write the proportion equation
   149,958.83 : 206,943.59 = 81,976.61 : x
2. Step 2: Convert to fraction form
   149,958.83/206,943.59 = 81,976.61/x
3. Step 3: Cross multiply
   149,958.83x = 206,943.59 × 81,976.61
4. Step 4: Simplify right side
   149,958.83x = 16,964,532,524.83
5. Step 5: Solve for x
   x = 16,964,532,524.83/149,958.83
6. Step 6: Final answer
   x = 113,127.94