Finding the Fourth Proportional to 149,946.39, 206,931.59 and 81,967.98

Step by Step Solution

1. Step 1: Write the proportion equation
   149,946.39 : 206,931.59 = 81,967.98 : x
2. Step 2: Convert to fraction form
   149,946.39/206,931.59 = 81,967.98/x
3. Step 3: Cross multiply
   149,946.39x = 206,931.59 × 81,967.98
4. Step 4: Simplify right side
   149,946.39x = 16,961,764,020.65
5. Step 5: Solve for x
   x = 16,961,764,020.65/149,946.39
6. Step 6: Final answer
   x = 113,118.86