Finding the Fourth Proportional to 72,828.72, 109,285.56 and 30,706.24

Step by Step Solution

1. Step 1: Write the proportion equation
   72,828.72 : 109,285.56 = 30,706.24 : x
2. Step 2: Convert to fraction form
   72,828.72/109,285.56 = 30,706.24/x
3. Step 3: Cross multiply
   72,828.72x = 109,285.56 × 30,706.24
4. Step 4: Simplify right side
   72,828.72x = 3,355,748,633.89
5. Step 5: Solve for x
   x = 3,355,748,633.89/72,828.72
6. Step 6: Final answer
   x = 46,077.27