Finding the Fourth Proportional to 42,332.76, 58,443.12 and 28,923.48

Step by Step Solution

1. Step 1: Write the proportion equation
   42,332.76 : 58,443.12 = 28,923.48 : x
2. Step 2: Convert to fraction form
   42,332.76/58,443.12 = 28,923.48/x
3. Step 3: Cross multiply
   42,332.76x = 58,443.12 × 28,923.48
4. Step 4: Simplify right side
   42,332.76x = 1,690,378,412.46
5. Step 5: Solve for x
   x = 1,690,378,412.46/42,332.76
6. Step 6: Final answer
   x = 39,930.74