Finding the Fourth Proportional to 58,034.25, 86,939.28 and 42,810

Step by Step Solution

1. Step 1: Write the proportion equation
   58,034.25 : 86,939.28 = 42,810 : x
2. Step 2: Convert to fraction form
   58,034.25/86,939.28 = 42,810/x
3. Step 3: Cross multiply
   58,034.25x = 86,939.28 × 42,810
4. Step 4: Simplify right side
   58,034.25x = 3,721,870,576.80
5. Step 5: Solve for x
   x = 3,721,870,576.80/58,034.25
6. Step 6: Final answer
   x = 64,132.31