Finding the Fourth Proportional to 42,500.57, 58,663.14 and 28,353.38

Step by Step Solution

1. Step 1: Write the proportion equation
   42,500.57 : 58,663.14 = 28,353.38 : x
2. Step 2: Convert to fraction form
   42,500.57/58,663.14 = 28,353.38/x
3. Step 3: Cross multiply
   42,500.57x = 58,663.14 × 28,353.38
4. Step 4: Simplify right side
   42,500.57x = 1,663,298,300.41
5. Step 5: Solve for x
   x = 1,663,298,300.41/42,500.57
6. Step 6: Final answer
   x = 39,135.91