Finding the Fourth Proportional to 85,392.42, 117,839.52 and 49,581.42

Step by Step Solution

1. Step 1: Write the proportion equation
   85,392.42 : 117,839.52 = 49,581.42 : x
2. Step 2: Convert to fraction form
   85,392.42/117,839.52 = 49,581.42/x
3. Step 3: Cross multiply
   85,392.42x = 117,839.52 × 49,581.42
4. Step 4: Simplify right side
   85,392.42x = 5,842,650,733.72
5. Step 5: Solve for x
   x = 5,842,650,733.72/85,392.42
6. Step 6: Final answer
   x = 68,421.19