Finding the Fourth Proportional to 42,178.76, 58,206.56 and 23,315.76

Step by Step Solution

1. Step 1: Write the proportion equation
   42,178.76 : 58,206.56 = 23,315.76 : x
2. Step 2: Convert to fraction form
   42,178.76/58,206.56 = 23,315.76/x
3. Step 3: Cross multiply
   42,178.76x = 58,206.56 × 23,315.76
4. Step 4: Simplify right side
   42,178.76x = 1,357,130,183.39
5. Step 5: Solve for x
   x = 1,357,130,183.39/42,178.76
6. Step 6: Final answer
   x = 32,175.68