Finding the Fourth Proportional to 72,003.40, 108,028.79 and 34,068.97

Step by Step Solution

1. Step 1: Write the proportion equation
   72,003.40 : 108,028.79 = 34,068.97 : x
2. Step 2: Convert to fraction form
   72,003.40/108,028.79 = 34,068.97/x
3. Step 3: Cross multiply
   72,003.40x = 108,028.79 × 34,068.97
4. Step 4: Simplify right side
   72,003.40x = 3,680,429,605.65
5. Step 5: Solve for x
   x = 3,680,429,605.65/72,003.40
6. Step 6: Final answer
   x = 51,114.66