Finding the Fourth Proportional to 31,835.94, 43,933.60 and 17,688.78

Step by Step Solution

1. Step 1: Write the proportion equation
   31,835.94 : 43,933.60 = 17,688.78 : x
2. Step 2: Convert to fraction form
   31,835.94/43,933.60 = 17,688.78/x
3. Step 3: Cross multiply
   31,835.94x = 43,933.60 × 17,688.78
4. Step 4: Simplify right side
   31,835.94x = 777,131,807.12
5. Step 5: Solve for x
   x = 777,131,807.12/31,835.94
6. Step 6: Final answer
   x = 24,410.52