Finding the Fourth Proportional to 52,880, 72,974.40 and 30,524

Step by Step Solution

1. Step 1: Write the proportion equation
   52,880 : 72,974.40 = 30,524 : x
2. Step 2: Convert to fraction form
   52,880/72,974.40 = 30,524/x
3. Step 3: Cross multiply
   52,880x = 72,974.40 × 30,524
4. Step 4: Simplify right side
   52,880x = 2,227,470,585.60
5. Step 5: Solve for x
   x = 2,227,470,585.60/52,880
6. Step 6: Final answer
   x = 42,123.12