Finding the Fourth Proportional to 371,086.88, 512,100.89 and 201,321

Step by Step Solution

1. Step 1: Write the proportion equation
   371,086.88 : 512,100.89 = 201,321 : x
2. Step 2: Convert to fraction form
   371,086.88/512,100.89 = 201,321/x
3. Step 3: Cross multiply
   371,086.88x = 512,100.89 × 201,321
4. Step 4: Simplify right side
   371,086.88x = 103,096,662,269.09
5. Step 5: Solve for x
   x = 103,096,662,269.09/371,086.88
6. Step 6: Final answer
   x = 277,823.52