Finding the Fourth Proportional to 42,658.04, 58,788.38 and 30,700.62

Step by Step Solution

1. Step 1: Write the proportion equation
   42,658.04 : 58,788.38 = 30,700.62 : x
2. Step 2: Convert to fraction form
   42,658.04/58,788.38 = 30,700.62/x
3. Step 3: Cross multiply
   42,658.04x = 58,788.38 × 30,700.62
4. Step 4: Simplify right side
   42,658.04x = 1,804,839,791.55
5. Step 5: Solve for x
   x = 1,804,839,791.55/42,658.04
6. Step 6: Final answer
   x = 42,309.48