Finding the Fourth Proportional to 307,459, 424,293.43 and 173,323

Step by Step Solution

1. Step 1: Write the proportion equation
   307,459 : 424,293.43 = 173,323 : x
2. Step 2: Convert to fraction form
   307,459/424,293.43 = 173,323/x
3. Step 3: Cross multiply
   307,459x = 424,293.43 × 173,323
4. Step 4: Simplify right side
   307,459x = 73,539,810,167.89
5. Step 5: Solve for x
   x = 73,539,810,167.89/307,459
6. Step 6: Final answer
   x = 239,185.75