Finding the Fourth Proportional to 538,627.98, 743,300.56 and 293,607.37

Step by Step Solution

1. Step 1: Write the proportion equation
   538,627.98 : 743,300.56 = 293,607.37 : x
2. Step 2: Convert to fraction form
   538,627.98/743,300.56 = 293,607.37/x
3. Step 3: Cross multiply
   538,627.98x = 743,300.56 × 293,607.37
4. Step 4: Simplify right side
   538,627.98x = 218,238,525,133.40
5. Step 5: Solve for x
   x = 218,238,525,133.40/538,627.98
6. Step 6: Final answer
   x = 405,174.88