Finding the Fourth Proportional to 337,928.78, 507,005.77 and 113,311.42

Step by Step Solution

1. Step 1: Write the proportion equation
   337,928.78 : 507,005.77 = 113,311.42 : x
2. Step 2: Convert to fraction form
   337,928.78/507,005.77 = 113,311.42/x
3. Step 3: Cross multiply
   337,928.78x = 507,005.77 × 113,311.42
4. Step 4: Simplify right side
   337,928.78x = 57,449,543,746.89
5. Step 5: Solve for x
   x = 57,449,543,746.89/337,928.78
6. Step 6: Final answer
   x = 170,004.89