Finding the Fourth Proportional to 85,392.78, 117,842.16 and 47,667

Step by Step Solution

1. Step 1: Write the proportion equation
   85,392.78 : 117,842.16 = 47,667 : x
2. Step 2: Convert to fraction form
   85,392.78/117,842.16 = 47,667/x
3. Step 3: Cross multiply
   85,392.78x = 117,842.16 × 47,667
4. Step 4: Simplify right side
   85,392.78x = 5,617,182,240.72
5. Step 5: Solve for x
   x = 5,617,182,240.72/85,392.78
6. Step 6: Final answer
   x = 65,780.53