Finding the Fourth Proportional to 338,667.39, 507,645.50 and 113,949.81

Step by Step Solution

1. Step 1: Write the proportion equation
   338,667.39 : 507,645.50 = 113,949.81 : x
2. Step 2: Convert to fraction form
   338,667.39/507,645.50 = 113,949.81/x
3. Step 3: Cross multiply
   338,667.39x = 507,645.50 × 113,949.81
4. Step 4: Simplify right side
   338,667.39x = 57,846,107,702.61
5. Step 5: Solve for x
   x = 57,846,107,702.61/338,667.39
6. Step 6: Final answer
   x = 170,805.07