Finding the Fourth Proportional to 56,662.05, 78,193.29 and 31,170

Step by Step Solution

1. Step 1: Write the proportion equation
   56,662.05 : 78,193.29 = 31,170 : x
2. Step 2: Convert to fraction form
   56,662.05/78,193.29 = 31,170/x
3. Step 3: Cross multiply
   56,662.05x = 78,193.29 × 31,170
4. Step 4: Simplify right side
   56,662.05x = 2,437,284,849.30
5. Step 5: Solve for x
   x = 2,437,284,849.30/56,662.05
6. Step 6: Final answer
   x = 43,014.41