Finding the Fourth Proportional to 493,290.50, 680,741.50 and 266,936

Step by Step Solution

1. Step 1: Write the proportion equation
   493,290.50 : 680,741.50 = 266,936 : x
2. Step 2: Convert to fraction form
   493,290.50/680,741.50 = 266,936/x
3. Step 3: Cross multiply
   493,290.50x = 680,741.50 × 266,936
4. Step 4: Simplify right side
   493,290.50x = 181,714,413,044
5. Step 5: Solve for x
   x = 181,714,413,044/493,290.50
6. Step 6: Final answer
   x = 368,372.01