Finding the Fourth Proportional to 42,678.52, 58,918.52 and 31,180.54

Step by Step Solution

1. Step 1: Write the proportion equation
   42,678.52 : 58,918.52 = 31,180.54 : x
2. Step 2: Convert to fraction form
   42,678.52/58,918.52 = 31,180.54/x
3. Step 3: Cross multiply
   42,678.52x = 58,918.52 × 31,180.54
4. Step 4: Simplify right side
   42,678.52x = 1,837,111,269.60
5. Step 5: Solve for x
   x = 1,837,111,269.60/42,678.52
6. Step 6: Final answer
   x = 43,045.34