Finding the Fourth Proportional to 52,611, 72,602.75 and 28,737.69

Step by Step Solution

1. Step 1: Write the proportion equation
   52,611 : 72,602.75 = 28,737.69 : x
2. Step 2: Convert to fraction form
   52,611/72,602.75 = 28,737.69/x
3. Step 3: Cross multiply
   52,611x = 72,602.75 × 28,737.69
4. Step 4: Simplify right side
   52,611x = 2,086,435,178.96
5. Step 5: Solve for x
   x = 2,086,435,178.96/52,611
6. Step 6: Final answer
   x = 39,657.77