Finding the Fourth Proportional to 52,411.99, 72,318.67 and 30,908.50

Step by Step Solution

1. Step 1: Write the proportion equation
   52,411.99 : 72,318.67 = 30,908.50 : x
2. Step 2: Convert to fraction form
   52,411.99/72,318.67 = 30,908.50/x
3. Step 3: Cross multiply
   52,411.99x = 72,318.67 × 30,908.50
4. Step 4: Simplify right side
   52,411.99x = 2,235,261,611.70
5. Step 5: Solve for x
   x = 2,235,261,611.70/52,411.99
6. Step 6: Final answer
   x = 42,647.91