Finding the Fourth Proportional to 867,013.05, 1,300,753.31 and 361,405.98

Step by Step Solution

1. Step 1: Write the proportion equation
   867,013.05 : 1,300,753.31 = 361,405.98 : x
2. Step 2: Convert to fraction form
   867,013.05/1,300,753.31 = 361,405.98/x
3. Step 3: Cross multiply
   867,013.05x = 1,300,753.31 × 361,405.98
4. Step 4: Simplify right side
   867,013.05x = 470,100,022,931.76
5. Step 5: Solve for x
   x = 470,100,022,931.76/867,013.05
6. Step 6: Final answer
   x = 542,206.40