Finding the Fourth Proportional to 31,997.31, 47,950.86 and 15,112.32

Step by Step Solution

1. Step 1: Write the proportion equation
   31,997.31 : 47,950.86 = 15,112.32 : x
2. Step 2: Convert to fraction form
   31,997.31/47,950.86 = 15,112.32/x
3. Step 3: Cross multiply
   31,997.31x = 47,950.86 × 15,112.32
4. Step 4: Simplify right side
   31,997.31x = 724,648,740.60
5. Step 5: Solve for x
   x = 724,648,740.60/31,997.31
6. Step 6: Final answer
   x = 22,647.18