Finding the Fourth Proportional to 42,165.84, 58,141.48 and 28,744.96

Step by Step Solution

1. Step 1: Write the proportion equation
   42,165.84 : 58,141.48 = 28,744.96 : x
2. Step 2: Convert to fraction form
   42,165.84/58,141.48 = 28,744.96/x
3. Step 3: Cross multiply
   42,165.84x = 58,141.48 × 28,744.96
4. Step 4: Simplify right side
   42,165.84x = 1,671,274,516.94
5. Step 5: Solve for x
   x = 1,671,274,516.94/42,165.84
6. Step 6: Final answer
   x = 39,635.75