Finding the Fourth Proportional to 42,057.27, 62,959.86 and 40,561.86

Step by Step Solution

1. Step 1: Write the proportion equation
   42,057.27 : 62,959.86 = 40,561.86 : x
2. Step 2: Convert to fraction form
   42,057.27/62,959.86 = 40,561.86/x
3. Step 3: Cross multiply
   42,057.27x = 62,959.86 × 40,561.86
4. Step 4: Simplify right side
   42,057.27x = 2,553,769,026.94
5. Step 5: Solve for x
   x = 2,553,769,026.94/42,057.27
6. Step 6: Final answer
   x = 60,721.23