Finding the Fourth Proportional to 56,662, 78,193.56 and 31,511.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,662 : 78,193.56 = 31,511.50 : x
2. Step 2: Convert to fraction form
   56,662/78,193.56 = 31,511.50/x
3. Step 3: Cross multiply
   56,662x = 78,193.56 × 31,511.50
4. Step 4: Simplify right side
   56,662x = 2,463,996,365.94
5. Step 5: Solve for x
   x = 2,463,996,365.94/56,662
6. Step 6: Final answer
   x = 43,485.87