Finding the Fourth Proportional to 42,858.82, 59,119.37 and 28,323.07

Step by Step Solution

1. Step 1: Write the proportion equation
   42,858.82 : 59,119.37 = 28,323.07 : x
2. Step 2: Convert to fraction form
   42,858.82/59,119.37 = 28,323.07/x
3. Step 3: Cross multiply
   42,858.82x = 59,119.37 × 28,323.07
4. Step 4: Simplify right side
   42,858.82x = 1,674,441,871.66
5. Step 5: Solve for x
   x = 1,674,441,871.66/42,858.82
6. Step 6: Final answer
   x = 39,068.78