Finding the Fourth Proportional to 825,666.50, 1,139,419.42 and 481,436

Step by Step Solution

1. Step 1: Write the proportion equation
   825,666.50 : 1,139,419.42 = 481,436 : x
2. Step 2: Convert to fraction form
   825,666.50/1,139,419.42 = 481,436/x
3. Step 3: Cross multiply
   825,666.50x = 1,139,419.42 × 481,436
4. Step 4: Simplify right side
   825,666.50x = 548,557,527,887.12
5. Step 5: Solve for x
   x = 548,557,527,887.12/825,666.50
6. Step 6: Final answer
   x = 664,381.48