Finding the Fourth Proportional to 42,722.90, 58,960.86 and 31,444.04

Step by Step Solution

1. Step 1: Write the proportion equation
   42,722.90 : 58,960.86 = 31,444.04 : x
2. Step 2: Convert to fraction form
   42,722.90/58,960.86 = 31,444.04/x
3. Step 3: Cross multiply
   42,722.90x = 58,960.86 × 31,444.04
4. Step 4: Simplify right side
   42,722.90x = 1,853,967,640.27
5. Step 5: Solve for x
   x = 1,853,967,640.27/42,722.90
6. Step 6: Final answer
   x = 43,395.17