Finding the Fourth Proportional to 249,443, 374,167.74 and 83,231

Step by Step Solution

1. Step 1: Write the proportion equation
   249,443 : 374,167.74 = 83,231 : x
2. Step 2: Convert to fraction form
   249,443/374,167.74 = 83,231/x
3. Step 3: Cross multiply
   249,443x = 374,167.74 × 83,231
4. Step 4: Simplify right side
   249,443x = 31,142,355,167.94
5. Step 5: Solve for x
   x = 31,142,355,167.94/249,443
6. Step 6: Final answer
   x = 124,847.58