Finding the Fourth Proportional to 42,510, 58,417.56 and 40,558.71

Step by Step Solution

1. Step 1: Write the proportion equation
   42,510 : 58,417.56 = 40,558.71 : x
2. Step 2: Convert to fraction form
   42,510/58,417.56 = 40,558.71/x
3. Step 3: Cross multiply
   42,510x = 58,417.56 × 40,558.71
4. Step 4: Simplify right side
   42,510x = 2,369,340,874.95
5. Step 5: Solve for x
   x = 2,369,340,874.95/42,510
6. Step 6: Final answer
   x = 55,736.08