Finding the Fourth Proportional to 499,364.56, 689,123.04 and 273,010

Step by Step Solution

1. Step 1: Write the proportion equation
   499,364.56 : 689,123.04 = 273,010 : x
2. Step 2: Convert to fraction form
   499,364.56/689,123.04 = 273,010/x
3. Step 3: Cross multiply
   499,364.56x = 689,123.04 × 273,010
4. Step 4: Simplify right side
   499,364.56x = 188,137,481,150.40
5. Step 5: Solve for x
   x = 188,137,481,150.40/499,364.56
6. Step 6: Final answer
   x = 376,753.77