Finding the Fourth Proportional to 85,493.06, 117,986.52 and 47,251.78

Step by Step Solution

1. Step 1: Write the proportion equation
   85,493.06 : 117,986.52 = 47,251.78 : x
2. Step 2: Convert to fraction form
   85,493.06/117,986.52 = 47,251.78/x
3. Step 3: Cross multiply
   85,493.06x = 117,986.52 × 47,251.78
4. Step 4: Simplify right side
   85,493.06x = 5,575,073,086.01
5. Step 5: Solve for x
   x = 5,575,073,086.01/85,493.06
6. Step 6: Final answer
   x = 65,210.83