Finding the Fourth Proportional to 72,509.82, 108,769.91 and 30,347.47

Step by Step Solution

1. Step 1: Write the proportion equation
   72,509.82 : 108,769.91 = 30,347.47 : x
2. Step 2: Convert to fraction form
   72,509.82/108,769.91 = 30,347.47/x
3. Step 3: Cross multiply
   72,509.82x = 108,769.91 × 30,347.47
4. Step 4: Simplify right side
   72,509.82x = 3,300,891,580.63
5. Step 5: Solve for x
   x = 3,300,891,580.63/72,509.82
6. Step 6: Final answer
   x = 45,523.37