Finding the Fourth Proportional to 72,606.72, 108,953.72 and 31,053.76

Step by Step Solution

1. Step 1: Write the proportion equation
   72,606.72 : 108,953.72 = 31,053.76 : x
2. Step 2: Convert to fraction form
   72,606.72/108,953.72 = 31,053.76/x
3. Step 3: Cross multiply
   72,606.72x = 108,953.72 × 31,053.76
4. Step 4: Simplify right side
   72,606.72x = 3,383,422,671.99
5. Step 5: Solve for x
   x = 3,383,422,671.99/72,606.72
6. Step 6: Final answer
   x = 46,599.30