Finding the Fourth Proportional to 42,639.39, 58,842.82 and 23,520

Step by Step Solution

1. Step 1: Write the proportion equation
   42,639.39 : 58,842.82 = 23,520 : x
2. Step 2: Convert to fraction form
   42,639.39/58,842.82 = 23,520/x
3. Step 3: Cross multiply
   42,639.39x = 58,842.82 × 23,520
4. Step 4: Simplify right side
   42,639.39x = 1,383,983,126.40
5. Step 5: Solve for x
   x = 1,383,983,126.40/42,639.39
6. Step 6: Final answer
   x = 32,457.85