Finding the Fourth Proportional to 69,145.35, 103,665.38 and 31,716.06

Step by Step Solution

1. Step 1: Write the proportion equation
   69,145.35 : 103,665.38 = 31,716.06 : x
2. Step 2: Convert to fraction form
   69,145.35/103,665.38 = 31,716.06/x
3. Step 3: Cross multiply
   69,145.35x = 103,665.38 × 31,716.06
4. Step 4: Simplify right side
   69,145.35x = 3,287,857,253.42
5. Step 5: Solve for x
   x = 3,287,857,253.42/69,145.35
6. Step 6: Final answer
   x = 47,549.94