Finding the Fourth Proportional to 85,133.16, 117,498.33 and 49,345.20

Step by Step Solution

1. Step 1: Write the proportion equation
   85,133.16 : 117,498.33 = 49,345.20 : x
2. Step 2: Convert to fraction form
   85,133.16/117,498.33 = 49,345.20/x
3. Step 3: Cross multiply
   85,133.16x = 117,498.33 × 49,345.20
4. Step 4: Simplify right side
   85,133.16x = 5,797,978,593.52
5. Step 5: Solve for x
   x = 5,797,978,593.52/85,133.16
6. Step 6: Final answer
   x = 68,104.82