Finding the Fourth Proportional to 56,906.13, 78,538.37 and 31,757.25

Step by Step Solution

1. Step 1: Write the proportion equation
   56,906.13 : 78,538.37 = 31,757.25 : x
2. Step 2: Convert to fraction form
   56,906.13/78,538.37 = 31,757.25/x
3. Step 3: Cross multiply
   56,906.13x = 78,538.37 × 31,757.25
4. Step 4: Simplify right side
   56,906.13x = 2,494,162,491.90
5. Step 5: Solve for x
   x = 2,494,162,491.90/56,906.13
6. Step 6: Final answer
   x = 43,829.42