Finding the Fourth Proportional to 51,580.35, 71,174.52 and 31,429.89

Step by Step Solution

1. Step 1: Write the proportion equation
   51,580.35 : 71,174.52 = 31,429.89 : x
2. Step 2: Convert to fraction form
   51,580.35/71,174.52 = 31,429.89/x
3. Step 3: Cross multiply
   51,580.35x = 71,174.52 × 31,429.89
4. Step 4: Simplify right side
   51,580.35x = 2,237,007,334.40
5. Step 5: Solve for x
   x = 2,237,007,334.40/51,580.35
6. Step 6: Final answer
   x = 43,369.37