Finding the Fourth Proportional to 31,380.78, 43,333.61 and 23,409.17

Step by Step Solution

1. Step 1: Write the proportion equation
   31,380.78 : 43,333.61 = 23,409.17 : x
2. Step 2: Convert to fraction form
   31,380.78/43,333.61 = 23,409.17/x
3. Step 3: Cross multiply
   31,380.78x = 43,333.61 × 23,409.17
4. Step 4: Simplify right side
   31,380.78x = 1,014,403,509.49
5. Step 5: Solve for x
   x = 1,014,403,509.49/31,380.78
6. Step 6: Final answer
   x = 32,325.63