Finding the Fourth Proportional to 42,433.02, 58,571.28 and 30,530.94

Step by Step Solution

1. Step 1: Write the proportion equation
   42,433.02 : 58,571.28 = 30,530.94 : x
2. Step 2: Convert to fraction form
   42,433.02/58,571.28 = 30,530.94/x
3. Step 3: Cross multiply
   42,433.02x = 58,571.28 × 30,530.94
4. Step 4: Simplify right side
   42,433.02x = 1,788,236,235.40
5. Step 5: Solve for x
   x = 1,788,236,235.40/42,433.02
6. Step 6: Final answer
   x = 42,142.56