Finding the Fourth Proportional to 42,162.85, 58,137.33 and 28,741.96

Step by Step Solution

1. Step 1: Write the proportion equation
   42,162.85 : 58,137.33 = 28,741.96 : x
2. Step 2: Convert to fraction form
   42,162.85/58,137.33 = 28,741.96/x
3. Step 3: Cross multiply
   42,162.85x = 58,137.33 × 28,741.96
4. Step 4: Simplify right side
   42,162.85x = 1,670,980,813.37
5. Step 5: Solve for x
   x = 1,670,980,813.37/42,162.85
6. Step 6: Final answer
   x = 39,631.59