Finding the Fourth Proportional to 277,100.83, 382,400.90 and 149,776.12

Step by Step Solution

1. Step 1: Write the proportion equation
   277,100.83 : 382,400.90 = 149,776.12 : x
2. Step 2: Convert to fraction form
   277,100.83/382,400.90 = 149,776.12/x
3. Step 3: Cross multiply
   277,100.83x = 382,400.90 × 149,776.12
4. Step 4: Simplify right side
   277,100.83x = 57,274,523,086.51
5. Step 5: Solve for x
   x = 57,274,523,086.51/277,100.83
6. Step 6: Final answer
   x = 206,691.99