Finding the Fourth Proportional to 56,759.28, 78,327.72 and 31,614.72

Step by Step Solution

1. Step 1: Write the proportion equation
   56,759.28 : 78,327.72 = 31,614.72 : x
2. Step 2: Convert to fraction form
   56,759.28/78,327.72 = 31,614.72/x
3. Step 3: Cross multiply
   56,759.28x = 78,327.72 × 31,614.72
4. Step 4: Simplify right side
   56,759.28x = 2,476,308,936.04
5. Step 5: Solve for x
   x = 2,476,308,936.04/56,759.28
6. Step 6: Final answer
   x = 43,628.27