Finding the Fourth Proportional to 51,285.98, 70,708.87 and 42,053.52

Step by Step Solution

1. Step 1: Write the proportion equation
   51,285.98 : 70,708.87 = 42,053.52 : x
2. Step 2: Convert to fraction form
   51,285.98/70,708.87 = 42,053.52/x
3. Step 3: Cross multiply
   51,285.98x = 70,708.87 × 42,053.52
4. Step 4: Simplify right side
   51,285.98x = 2,973,556,878.72
5. Step 5: Solve for x
   x = 2,973,556,878.72/51,285.98
6. Step 6: Final answer
   x = 57,979.92