Finding the Fourth Proportional to 42,128.84, 58,137.78 and 23,265.80

Step by Step Solution

1. Step 1: Write the proportion equation
   42,128.84 : 58,137.78 = 23,265.80 : x
2. Step 2: Convert to fraction form
   42,128.84/58,137.78 = 23,265.80/x
3. Step 3: Cross multiply
   42,128.84x = 58,137.78 × 23,265.80
4. Step 4: Simplify right side
   42,128.84x = 1,352,621,961.92
5. Step 5: Solve for x
   x = 1,352,621,961.92/42,128.84
6. Step 6: Final answer
   x = 32,106.79