Finding the Fourth Proportional to 50,346.30, 69,460.59 and 31,219.20

Step by Step Solution

1. Step 1: Write the proportion equation
   50,346.30 : 69,460.59 = 31,219.20 : x
2. Step 2: Convert to fraction form
   50,346.30/69,460.59 = 31,219.20/x
3. Step 3: Cross multiply
   50,346.30x = 69,460.59 × 31,219.20
4. Step 4: Simplify right side
   50,346.30x = 2,168,504,051.33
5. Step 5: Solve for x
   x = 2,168,504,051.33/50,346.30
6. Step 6: Final answer
   x = 43,071.77