Finding the Fourth Proportional to 53,472.50, 73,811.52 and 31,116.50

Step by Step Solution

1. Step 1: Write the proportion equation
   53,472.50 : 73,811.52 = 31,116.50 : x
2. Step 2: Convert to fraction form
   53,472.50/73,811.52 = 31,116.50/x
3. Step 3: Cross multiply
   53,472.50x = 73,811.52 × 31,116.50
4. Step 4: Simplify right side
   53,472.50x = 2,296,756,162.08
5. Step 5: Solve for x
   x = 2,296,756,162.08/53,472.50
6. Step 6: Final answer
   x = 42,952.10