Finding the Fourth Proportional to 42,501.57, 58,664.52 and 28,354.38

Step by Step Solution

1. Step 1: Write the proportion equation
   42,501.57 : 58,664.52 = 28,354.38 : x
2. Step 2: Convert to fraction form
   42,501.57/58,664.52 = 28,354.38/x
3. Step 3: Cross multiply
   42,501.57x = 58,664.52 × 28,354.38
4. Step 4: Simplify right side
   42,501.57x = 1,663,396,092.60
5. Step 5: Solve for x
   x = 1,663,396,092.60/42,501.57
6. Step 6: Final answer
   x = 39,137.29