Finding the Fourth Proportional to 50,294.93, 69,386.83 and 31,168.40

Step by Step Solution

1. Step 1: Write the proportion equation
   50,294.93 : 69,386.83 = 31,168.40 : x
2. Step 2: Convert to fraction form
   50,294.93/69,386.83 = 31,168.40/x
3. Step 3: Cross multiply
   50,294.93x = 69,386.83 × 31,168.40
4. Step 4: Simplify right side
   50,294.93x = 2,162,676,047.32
5. Step 5: Solve for x
   x = 2,162,676,047.32/50,294.93
6. Step 6: Final answer
   x = 42,999.89