Finding the Fourth Proportional to 42,426.42, 58,509.34 and 28,834.82

Step by Step Solution

1. Step 1: Write the proportion equation
   42,426.42 : 58,509.34 = 28,834.82 : x
2. Step 2: Convert to fraction form
   42,426.42/58,509.34 = 28,834.82/x
3. Step 3: Cross multiply
   42,426.42x = 58,509.34 × 28,834.82
4. Step 4: Simplify right side
   42,426.42x = 1,687,106,143.04
5. Step 5: Solve for x
   x = 1,687,106,143.04/42,426.42
6. Step 6: Final answer
   x = 39,765.46