Finding the Fourth Proportional to 72,922.06, 109,336.38 and 30,790.72

Step by Step Solution

1. Step 1: Write the proportion equation
   72,922.06 : 109,336.38 = 30,790.72 : x
2. Step 2: Convert to fraction form
   72,922.06/109,336.38 = 30,790.72/x
3. Step 3: Cross multiply
   72,922.06x = 109,336.38 × 30,790.72
4. Step 4: Simplify right side
   72,922.06x = 3,366,545,862.39
5. Step 5: Solve for x
   x = 3,366,545,862.39/72,922.06
6. Step 6: Final answer
   x = 46,166.36