Finding the Fourth Proportional to 842,076.10, 1,263,114.15 and 243,056.80

Step by Step Solution

1. Step 1: Write the proportion equation
   842,076.10 : 1,263,114.15 = 243,056.80 : x
2. Step 2: Convert to fraction form
   842,076.10/1,263,114.15 = 243,056.80/x
3. Step 3: Cross multiply
   842,076.10x = 1,263,114.15 × 243,056.80
4. Step 4: Simplify right side
   842,076.10x = 307,008,483,333.72
5. Step 5: Solve for x
   x = 307,008,483,333.72/842,076.10
6. Step 6: Final answer
   x = 364,585.20