Finding the Fourth Proportional to 42,545.09, 58,711.25 and 26,638.31

Step by Step Solution

1. Step 1: Write the proportion equation
   42,545.09 : 58,711.25 = 26,638.31 : x
2. Step 2: Convert to fraction form
   42,545.09/58,711.25 = 26,638.31/x
3. Step 3: Cross multiply
   42,545.09x = 58,711.25 × 26,638.31
4. Step 4: Simplify right side
   42,545.09x = 1,563,968,264.61
5. Step 5: Solve for x
   x = 1,563,968,264.61/42,545.09
6. Step 6: Final answer
   x = 36,760.25