Finding the Fourth Proportional to 56,922.05, 78,550.35 and 31,427.87

Step by Step Solution

1. Step 1: Write the proportion equation
   56,922.05 : 78,550.35 = 31,427.87 : x
2. Step 2: Convert to fraction form
   56,922.05/78,550.35 = 31,427.87/x
3. Step 3: Cross multiply
   56,922.05x = 78,550.35 × 31,427.87
4. Step 4: Simplify right side
   56,922.05x = 2,468,669,795.50
5. Step 5: Solve for x
   x = 2,468,669,795.50/56,922.05
6. Step 6: Final answer
   x = 43,369.31