Finding the Fourth Proportional to 72,829.74, 109,191.15 and 30,708.12

Step by Step Solution

1. Step 1: Write the proportion equation
   72,829.74 : 109,191.15 = 30,708.12 : x
2. Step 2: Convert to fraction form
   72,829.74/109,191.15 = 30,708.12/x
3. Step 3: Cross multiply
   72,829.74x = 109,191.15 × 30,708.12
4. Step 4: Simplify right side
   72,829.74x = 3,353,054,937.14
5. Step 5: Solve for x
   x = 3,353,054,937.14/72,829.74
6. Step 6: Final answer
   x = 46,039.64