Finding the Fourth Proportional to 72,824.10, 109,278.59 and 30,701.61

Step by Step Solution

1. Step 1: Write the proportion equation
   72,824.10 : 109,278.59 = 30,701.61 : x
2. Step 2: Convert to fraction form
   72,824.10/109,278.59 = 30,701.61/x
3. Step 3: Cross multiply
   72,824.10x = 109,278.59 × 30,701.61
4. Step 4: Simplify right side
   72,824.10x = 3,355,028,651.53
5. Step 5: Solve for x
   x = 3,355,028,651.53/72,824.10
6. Step 6: Final answer
   x = 46,070.31