Finding the Fourth Proportional to 69,399.90, 104,084.27 and 31,923.98

Step by Step Solution

1. Step 1: Write the proportion equation
   69,399.90 : 104,084.27 = 31,923.98 : x
2. Step 2: Convert to fraction form
   69,399.90/104,084.27 = 31,923.98/x
3. Step 3: Cross multiply
   69,399.90x = 104,084.27 × 31,923.98
4. Step 4: Simplify right side
   69,399.90x = 3,322,783,473.75
5. Step 5: Solve for x
   x = 3,322,783,473.75/69,399.90
6. Step 6: Final answer
   x = 47,878.79