Finding the Fourth Proportional to 56,756.56, 78,323.34 and 31,262.42

Step by Step Solution

1. Step 1: Write the proportion equation
   56,756.56 : 78,323.34 = 31,262.42 : x
2. Step 2: Convert to fraction form
   56,756.56/78,323.34 = 31,262.42/x
3. Step 3: Cross multiply
   56,756.56x = 78,323.34 × 31,262.42
4. Step 4: Simplify right side
   56,756.56x = 2,448,577,150.88
5. Step 5: Solve for x
   x = 2,448,577,150.88/56,756.56
6. Step 6: Final answer
   x = 43,141.75