Finding the Fourth Proportional to 465,111.59, 641,845.82 and 261,164.12

Step by Step Solution

1. Step 1: Write the proportion equation
   465,111.59 : 641,845.82 = 261,164.12 : x
2. Step 2: Convert to fraction form
   465,111.59/641,845.82 = 261,164.12/x
3. Step 3: Cross multiply
   465,111.59x = 641,845.82 × 261,164.12
4. Step 4: Simplify right side
   465,111.59x = 167,627,096,199.66
5. Step 5: Solve for x
   x = 167,627,096,199.66/465,111.59
6. Step 6: Final answer
   x = 360,401.89