Finding the Fourth Proportional to 69,426.80, 104,056.71 and 31,935.20

Step by Step Solution

1. Step 1: Write the proportion equation
   69,426.80 : 104,056.71 = 31,935.20 : x
2. Step 2: Convert to fraction form
   69,426.80/104,056.71 = 31,935.20/x
3. Step 3: Cross multiply
   69,426.80x = 104,056.71 × 31,935.20
4. Step 4: Simplify right side
   69,426.80x = 3,323,071,324.91
5. Step 5: Solve for x
   x = 3,323,071,324.91/69,426.80
6. Step 6: Final answer
   x = 47,864.39