Finding the Fourth Proportional to 42,607.05, 63,839.94 and 25,916.59

Step by Step Solution

1. Step 1: Write the proportion equation
   42,607.05 : 63,839.94 = 25,916.59 : x
2. Step 2: Convert to fraction form
   42,607.05/63,839.94 = 25,916.59/x
3. Step 3: Cross multiply
   42,607.05x = 63,839.94 × 25,916.59
4. Step 4: Simplify right side
   42,607.05x = 1,654,513,550.60
5. Step 5: Solve for x
   x = 1,654,513,550.60/42,607.05
6. Step 6: Final answer
   x = 38,831.92