Finding the Fourth Proportional to 56,756.69, 78,323.49 and 31,262.57

Step by Step Solution

1. Step 1: Write the proportion equation
   56,756.69 : 78,323.49 = 31,262.57 : x
2. Step 2: Convert to fraction form
   56,756.69/78,323.49 = 31,262.57/x
3. Step 3: Cross multiply
   56,756.69x = 78,323.49 × 31,262.57
4. Step 4: Simplify right side
   56,756.69x = 2,448,593,197.15
5. Step 5: Solve for x
   x = 2,448,593,197.15/56,756.69
6. Step 6: Final answer
   x = 43,141.93