Finding the Fourth Proportional to 56,846.94, 78,447.71 and 31,355.69

Step by Step Solution

1. Step 1: Write the proportion equation
   56,846.94 : 78,447.71 = 31,355.69 : x
2. Step 2: Convert to fraction form
   56,846.94/78,447.71 = 31,355.69/x
3. Step 3: Cross multiply
   56,846.94x = 78,447.71 × 31,355.69
4. Step 4: Simplify right side
   56,846.94x = 2,459,781,683.73
5. Step 5: Solve for x
   x = 2,459,781,683.73/56,846.94
6. Step 6: Final answer
   x = 43,270.26