Finding the Fourth Proportional to 72,829.56, 109,322.10 and 31,305.72

Step by Step Solution

1. Step 1: Write the proportion equation
   72,829.56 : 109,322.10 = 31,305.72 : x
2. Step 2: Convert to fraction form
   72,829.56/109,322.10 = 31,305.72/x
3. Step 3: Cross multiply
   72,829.56x = 109,322.10 × 31,305.72
4. Step 4: Simplify right side
   72,829.56x = 3,422,407,052.41
5. Step 5: Solve for x
   x = 3,422,407,052.41/72,829.56
6. Step 6: Final answer
   x = 46,992.01