Finding the Fourth Proportional to 249,002.50, 373,506.99 and 82,790.50

Step by Step Solution

1. Step 1: Write the proportion equation
   249,002.50 : 373,506.99 = 82,790.50 : x
2. Step 2: Convert to fraction form
   249,002.50/373,506.99 = 82,790.50/x
3. Step 3: Cross multiply
   249,002.50x = 373,506.99 × 82,790.50
4. Step 4: Simplify right side
   249,002.50x = 30,922,830,455.60
5. Step 5: Solve for x
   x = 30,922,830,455.60/249,002.50
6. Step 6: Final answer
   x = 124,186.83