Finding the Fourth Proportional to 591,082.31, 815,694.50 and 336,433.50

Step by Step Solution

1. Step 1: Write the proportion equation
   591,082.31 : 815,694.50 = 336,433.50 : x
2. Step 2: Convert to fraction form
   591,082.31/815,694.50 = 336,433.50/x
3. Step 3: Cross multiply
   591,082.31x = 815,694.50 × 336,433.50
4. Step 4: Simplify right side
   591,082.31x = 274,426,956,406.83
5. Step 5: Solve for x
   x = 274,426,956,406.83/591,082.31
6. Step 6: Final answer
   x = 464,278.75