Finding the Fourth Proportional to 79,011.58, 109,065.63 and 51,789.42

Step by Step Solution

1. Step 1: Write the proportion equation
   79,011.58 : 109,065.63 = 51,789.42 : x
2. Step 2: Convert to fraction form
   79,011.58/109,065.63 = 51,789.42/x
3. Step 3: Cross multiply
   79,011.58x = 109,065.63 × 51,789.42
4. Step 4: Simplify right side
   79,011.58x = 5,648,445,563.69
5. Step 5: Solve for x
   x = 5,648,445,563.69/79,011.58
6. Step 6: Final answer
   x = 71,488.83