Finding the Fourth Proportional to 463,345, 639,411.78 and 262,141

Step by Step Solution

1. Step 1: Write the proportion equation
   463,345 : 639,411.78 = 262,141 : x
2. Step 2: Convert to fraction form
   463,345/639,411.78 = 262,141/x
3. Step 3: Cross multiply
   463,345x = 639,411.78 × 262,141
4. Step 4: Simplify right side
   463,345x = 167,616,043,420.98
5. Step 5: Solve for x
   x = 167,616,043,420.98/463,345
6. Step 6: Final answer
   x = 361,752.14