Finding the Fourth Proportional to 52,740, 72,777.72 and 28,866.96

Step by Step Solution

1. Step 1: Write the proportion equation
   52,740 : 72,777.72 = 28,866.96 : x
2. Step 2: Convert to fraction form
   52,740/72,777.72 = 28,866.96/x
3. Step 3: Cross multiply
   52,740x = 72,777.72 × 28,866.96
4. Step 4: Simplify right side
   52,740x = 2,100,871,532.13
5. Step 5: Solve for x
   x = 2,100,871,532.13/52,740
6. Step 6: Final answer
   x = 39,834.50