Finding the Fourth Proportional to 276,820.12, 382,011.76 and 149,495.72

Step by Step Solution

1. Step 1: Write the proportion equation
   276,820.12 : 382,011.76 = 149,495.72 : x
2. Step 2: Convert to fraction form
   276,820.12/382,011.76 = 149,495.72/x
3. Step 3: Cross multiply
   276,820.12x = 382,011.76 × 149,495.72
4. Step 4: Simplify right side
   276,820.12x = 57,109,123,109.67
5. Step 5: Solve for x
   x = 57,109,123,109.67/276,820.12
6. Step 6: Final answer
   x = 206,304.09