Finding the Fourth Proportional to 42,020.94, 58,072.50 and 34,455.54

Step by Step Solution

1. Step 1: Write the proportion equation
   42,020.94 : 58,072.50 = 34,455.54 : x
2. Step 2: Convert to fraction form
   42,020.94/58,072.50 = 34,455.54/x
3. Step 3: Cross multiply
   42,020.94x = 58,072.50 × 34,455.54
4. Step 4: Simplify right side
   42,020.94x = 2,000,919,346.65
5. Step 5: Solve for x
   x = 2,000,919,346.65/42,020.94
6. Step 6: Final answer
   x = 47,617.20