Finding the Fourth Proportional to 42,671.76, 58,893 and 30,774.48

Step by Step Solution

1. Step 1: Write the proportion equation
   42,671.76 : 58,893 = 30,774.48 : x
2. Step 2: Convert to fraction form
   42,671.76/58,893 = 30,774.48/x
3. Step 3: Cross multiply
   42,671.76x = 58,893 × 30,774.48
4. Step 4: Simplify right side
   42,671.76x = 1,812,401,450.64
5. Step 5: Solve for x
   x = 1,812,401,450.64/42,671.76
6. Step 6: Final answer
   x = 42,473.09