Finding the Fourth Proportional to 31,809.30, 47,735.55 and 17,769.30

Step by Step Solution

1. Step 1: Write the proportion equation
   31,809.30 : 47,735.55 = 17,769.30 : x
2. Step 2: Convert to fraction form
   31,809.30/47,735.55 = 17,769.30/x
3. Step 3: Cross multiply
   31,809.30x = 47,735.55 × 17,769.30
4. Step 4: Simplify right side
   31,809.30x = 848,227,308.62
5. Step 5: Solve for x
   x = 848,227,308.62/31,809.30
6. Step 6: Final answer
   x = 26,666.02