Finding the Fourth Proportional to 42,069.69, 58,037.85 and 30,711.87

Step by Step Solution

1. Step 1: Write the proportion equation
   42,069.69 : 58,037.85 = 30,711.87 : x
2. Step 2: Convert to fraction form
   42,069.69/58,037.85 = 30,711.87/x
3. Step 3: Cross multiply
   42,069.69x = 58,037.85 × 30,711.87
4. Step 4: Simplify right side
   42,069.69x = 1,782,450,904.28
5. Step 5: Solve for x
   x = 1,782,450,904.28/42,069.69
6. Step 6: Final answer
   x = 42,369.00