Finding the Fourth Proportional to 1,200,047.10, 1,800,072.42 and 490,075.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,200,047.10 : 1,800,072.42 = 490,075.18 : x
2. Step 2: Convert to fraction form
   1,200,047.10/1,800,072.42 = 490,075.18/x
3. Step 3: Cross multiply
   1,200,047.10x = 1,800,072.42 × 490,075.18
4. Step 4: Simplify right side
   1,200,047.10x = 882,170,808,906.57
5. Step 5: Solve for x
   x = 882,170,808,906.57/1,200,047.10
6. Step 6: Final answer
   x = 735,113.49