Finding the Fourth Proportional to 362,300.79, 499,987.85 and 201,158.31

Step by Step Solution

1. Step 1: Write the proportion equation
   362,300.79 : 499,987.85 = 201,158.31 : x
2. Step 2: Convert to fraction form
   362,300.79/499,987.85 = 201,158.31/x
3. Step 3: Cross multiply
   362,300.79x = 499,987.85 × 201,158.31
4. Step 4: Simplify right side
   362,300.79x = 100,576,710,926.53
5. Step 5: Solve for x
   x = 100,576,710,926.53/362,300.79
6. Step 6: Final answer
   x = 277,605.55