Finding the Fourth Proportional to 72,813.04, 109,258.80 and 30,722.29

Step by Step Solution

1. Step 1: Write the proportion equation
   72,813.04 : 109,258.80 = 30,722.29 : x
2. Step 2: Convert to fraction form
   72,813.04/109,258.80 = 30,722.29/x
3. Step 3: Cross multiply
   72,813.04x = 109,258.80 × 30,722.29
4. Step 4: Simplify right side
   72,813.04x = 3,356,680,538.65
5. Step 5: Solve for x
   x = 3,356,680,538.65/72,813.04
6. Step 6: Final answer
   x = 46,099.99