Finding the Fourth Proportional to 42,010.30, 58,053.43 and 33,128.35

Step by Step Solution

1. Step 1: Write the proportion equation
   42,010.30 : 58,053.43 = 33,128.35 : x
2. Step 2: Convert to fraction form
   42,010.30/58,053.43 = 33,128.35/x
3. Step 3: Cross multiply
   42,010.30x = 58,053.43 × 33,128.35
4. Step 4: Simplify right side
   42,010.30x = 1,923,214,347.74
5. Step 5: Solve for x
   x = 1,923,214,347.74/42,010.30
6. Step 6: Final answer
   x = 45,779.59