Finding the Fourth Proportional to 52,896, 72,996.48 and 30,540

Step by Step Solution

1. Step 1: Write the proportion equation
   52,896 : 72,996.48 = 30,540 : x
2. Step 2: Convert to fraction form
   52,896/72,996.48 = 30,540/x
3. Step 3: Cross multiply
   52,896x = 72,996.48 × 30,540
4. Step 4: Simplify right side
   52,896x = 2,229,312,499.20
5. Step 5: Solve for x
   x = 2,229,312,499.20/52,896
6. Step 6: Final answer
   x = 42,145.20