Finding the Fourth Proportional to 85,620.63, 118,156.89 and 47,894.88

Step by Step Solution

1. Step 1: Write the proportion equation
   85,620.63 : 118,156.89 = 47,894.88 : x
2. Step 2: Convert to fraction form
   85,620.63/118,156.89 = 47,894.88/x
3. Step 3: Cross multiply
   85,620.63x = 118,156.89 × 47,894.88
4. Step 4: Simplify right side
   85,620.63x = 5,659,110,067.72
5. Step 5: Solve for x
   x = 5,659,110,067.72/85,620.63
6. Step 6: Final answer
   x = 66,095.17