Finding the Fourth Proportional to 249,118.23, 373,736.67 and 80,638.59

Step by Step Solution

1. Step 1: Write the proportion equation
   249,118.23 : 373,736.67 = 80,638.59 : x
2. Step 2: Convert to fraction form
   249,118.23/373,736.67 = 80,638.59/x
3. Step 3: Cross multiply
   249,118.23x = 373,736.67 × 80,638.59
4. Step 4: Simplify right side
   249,118.23x = 30,137,598,100.10
5. Step 5: Solve for x
   x = 30,137,598,100.10/249,118.23
6. Step 6: Final answer
   x = 120,977.09