Finding the Fourth Proportional to 56,960.37, 78,605.51 and 31,809.87

Step by Step Solution

1. Step 1: Write the proportion equation
   56,960.37 : 78,605.51 = 31,809.87 : x
2. Step 2: Convert to fraction form
   56,960.37/78,605.51 = 31,809.87/x
3. Step 3: Cross multiply
   56,960.37x = 78,605.51 × 31,809.87
4. Step 4: Simplify right side
   56,960.37x = 2,500,430,895.33
5. Step 5: Solve for x
   x = 2,500,430,895.33/56,960.37
6. Step 6: Final answer
   x = 43,897.73