Finding the Fourth Proportional to 39,073.56, 53,886.78 and 30,675.48

Step by Step Solution

1. Step 1: Write the proportion equation
   39,073.56 : 53,886.78 = 30,675.48 : x
2. Step 2: Convert to fraction form
   39,073.56/53,886.78 = 30,675.48/x
3. Step 3: Cross multiply
   39,073.56x = 53,886.78 × 30,675.48
4. Step 4: Simplify right side
   39,073.56x = 1,653,002,842.15
5. Step 5: Solve for x
   x = 1,653,002,842.15/39,073.56
6. Step 6: Final answer
   x = 42,304.89