Finding the Fourth Proportional to 72,538.74, 108,787.05 and 30,417.73

Step by Step Solution

1. Step 1: Write the proportion equation
   72,538.74 : 108,787.05 = 30,417.73 : x
2. Step 2: Convert to fraction form
   72,538.74/108,787.05 = 30,417.73/x
3. Step 3: Cross multiply
   72,538.74x = 108,787.05 × 30,417.73
4. Step 4: Simplify right side
   72,538.74x = 3,309,054,842.43
5. Step 5: Solve for x
   x = 3,309,054,842.43/72,538.74
6. Step 6: Final answer
   x = 45,617.76