Finding the Fourth Proportional to 31,063.78, 42,869.81 and 23,393.32

Step by Step Solution

1. Step 1: Write the proportion equation
   31,063.78 : 42,869.81 = 23,393.32 : x
2. Step 2: Convert to fraction form
   31,063.78/42,869.81 = 23,393.32/x
3. Step 3: Cross multiply
   31,063.78x = 42,869.81 × 23,393.32
4. Step 4: Simplify right side
   31,063.78x = 1,002,866,969.32
5. Step 5: Solve for x
   x = 1,002,866,969.32/31,063.78
6. Step 6: Final answer
   x = 32,284.13