Finding the Fourth Proportional to 53,475.25, 73,815.32 and 31,119.25

Step by Step Solution

1. Step 1: Write the proportion equation
   53,475.25 : 73,815.32 = 31,119.25 : x
2. Step 2: Convert to fraction form
   53,475.25/73,815.32 = 31,119.25/x
3. Step 3: Cross multiply
   53,475.25x = 73,815.32 × 31,119.25
4. Step 4: Simplify right side
   53,475.25x = 2,297,077,396.91
5. Step 5: Solve for x
   x = 2,297,077,396.91/53,475.25
6. Step 6: Final answer
   x = 42,955.90