Finding the Fourth Proportional to 42,439.89, 58,566.81 and 23,058.65

Step by Step Solution

1. Step 1: Write the proportion equation
   42,439.89 : 58,566.81 = 23,058.65 : x
2. Step 2: Convert to fraction form
   42,439.89/58,566.81 = 23,058.65/x
3. Step 3: Cross multiply
   42,439.89x = 58,566.81 × 23,058.65
4. Step 4: Simplify right side
   42,439.89x = 1,350,471,280.57
5. Step 5: Solve for x
   x = 1,350,471,280.57/42,439.89
6. Step 6: Final answer
   x = 31,820.80