Finding the Fourth Proportional to 38,647.34, 53,440.73 and 30,675.73

Step by Step Solution

1. Step 1: Write the proportion equation
   38,647.34 : 53,440.73 = 30,675.73 : x
2. Step 2: Convert to fraction form
   38,647.34/53,440.73 = 30,675.73/x
3. Step 3: Cross multiply
   38,647.34x = 53,440.73 × 30,675.73
4. Step 4: Simplify right side
   38,647.34x = 1,639,333,404.48
5. Step 5: Solve for x
   x = 1,639,333,404.48/38,647.34
6. Step 6: Final answer
   x = 42,417.76