Finding the Fourth Proportional to 53,271.72, 73,517.37 and 30,618.06

Step by Step Solution

1. Step 1: Write the proportion equation
   53,271.72 : 73,517.37 = 30,618.06 : x
2. Step 2: Convert to fraction form
   53,271.72/73,517.37 = 30,618.06/x
3. Step 3: Cross multiply
   53,271.72x = 73,517.37 × 30,618.06
4. Step 4: Simplify right side
   53,271.72x = 2,250,959,245.70
5. Step 5: Solve for x
   x = 2,250,959,245.70/53,271.72
6. Step 6: Final answer
   x = 42,254.30