Finding the Fourth Proportional to 540,936, 810,441.72 and 461,241.72

Step by Step Solution

1. Step 1: Write the proportion equation
   540,936 : 810,441.72 = 461,241.72 : x
2. Step 2: Convert to fraction form
   540,936/810,441.72 = 461,241.72/x
3. Step 3: Cross multiply
   540,936x = 810,441.72 × 461,241.72
4. Step 4: Simplify right side
   540,936x = 373,809,532,892.56
5. Step 5: Solve for x
   x = 373,809,532,892.56/540,936
6. Step 6: Final answer
   x = 691,042.07