Finding the Fourth Proportional to 51,589.69, 71,235.83 and 42,031.12

Step by Step Solution

1. Step 1: Write the proportion equation
   51,589.69 : 71,235.83 = 42,031.12 : x
2. Step 2: Convert to fraction form
   51,589.69/71,235.83 = 42,031.12/x
3. Step 3: Cross multiply
   51,589.69x = 71,235.83 × 42,031.12
4. Step 4: Simplify right side
   51,589.69x = 2,994,121,719.03
5. Step 5: Solve for x
   x = 2,994,121,719.03/51,589.69
6. Step 6: Final answer
   x = 58,037.21