Finding the Fourth Proportional to 53,131.55, 73,311.89 and 31,911.17

Step by Step Solution

1. Step 1: Write the proportion equation
   53,131.55 : 73,311.89 = 31,911.17 : x
2. Step 2: Convert to fraction form
   53,131.55/73,311.89 = 31,911.17/x
3. Step 3: Cross multiply
   53,131.55x = 73,311.89 × 31,911.17
4. Step 4: Simplify right side
   53,131.55x = 2,339,467,658.70
5. Step 5: Solve for x
   x = 2,339,467,658.70/53,131.55
6. Step 6: Final answer
   x = 44,031.61