Finding the Fourth Proportional to 85,059.17, 117,394.56 and 51,086.42

Step by Step Solution

1. Step 1: Write the proportion equation
   85,059.17 : 117,394.56 = 51,086.42 : x
2. Step 2: Convert to fraction form
   85,059.17/117,394.56 = 51,086.42/x
3. Step 3: Cross multiply
   85,059.17x = 117,394.56 × 51,086.42
4. Step 4: Simplify right side
   85,059.17x = 5,997,267,797.88
5. Step 5: Solve for x
   x = 5,997,267,797.88/85,059.17
6. Step 6: Final answer
   x = 70,507.01