Finding the Fourth Proportional to 72,510.82, 108,771.40 and 30,348.48

Step by Step Solution

1. Step 1: Write the proportion equation
   72,510.82 : 108,771.40 = 30,348.48 : x
2. Step 2: Convert to fraction form
   72,510.82/108,771.40 = 30,348.48/x
3. Step 3: Cross multiply
   72,510.82x = 108,771.40 × 30,348.48
4. Step 4: Simplify right side
   72,510.82x = 3,301,046,657.47
5. Step 5: Solve for x
   x = 3,301,046,657.47/72,510.82
6. Step 6: Final answer
   x = 45,524.88