Finding the Fourth Proportional to 445,563.72, 667,255.52 and 402,384.17

Step by Step Solution

1. Step 1: Write the proportion equation
   445,563.72 : 667,255.52 = 402,384.17 : x
2. Step 2: Convert to fraction form
   445,563.72/667,255.52 = 402,384.17/x
3. Step 3: Cross multiply
   445,563.72x = 667,255.52 × 402,384.17
4. Step 4: Simplify right side
   445,563.72x = 268,493,061,267.22
5. Step 5: Solve for x
   x = 268,493,061,267.22/445,563.72
6. Step 6: Final answer
   x = 602,591.84