Finding the Fourth Proportional to 52,419.57, 72,333.50 and 30,616.53

Step by Step Solution

1. Step 1: Write the proportion equation
   52,419.57 : 72,333.50 = 30,616.53 : x
2. Step 2: Convert to fraction form
   52,419.57/72,333.50 = 30,616.53/x
3. Step 3: Cross multiply
   52,419.57x = 72,333.50 × 30,616.53
4. Step 4: Simplify right side
   52,419.57x = 2,214,600,772.76
5. Step 5: Solve for x
   x = 2,214,600,772.76/52,419.57
6. Step 6: Final answer
   x = 42,247.60