Finding the Fourth Proportional to 42,356.52, 58,462.64 and 28,767.58

Step by Step Solution

1. Step 1: Write the proportion equation
   42,356.52 : 58,462.64 = 28,767.58 : x
2. Step 2: Convert to fraction form
   42,356.52/58,462.64 = 28,767.58/x
3. Step 3: Cross multiply
   42,356.52x = 58,462.64 × 28,767.58
4. Step 4: Simplify right side
   42,356.52x = 1,681,828,673.21
5. Step 5: Solve for x
   x = 1,681,828,673.21/42,356.52
6. Step 6: Final answer
   x = 39,706.49