Finding the Fourth Proportional to 52,786.10, 72,846.59 and 28,914.12

Step by Step Solution

1. Step 1: Write the proportion equation
   52,786.10 : 72,846.59 = 28,914.12 : x
2. Step 2: Convert to fraction form
   52,786.10/72,846.59 = 28,914.12/x
3. Step 3: Cross multiply
   52,786.10x = 72,846.59 × 28,914.12
4. Step 4: Simplify right side
   52,786.10x = 2,106,294,900.28
5. Step 5: Solve for x
   x = 2,106,294,900.28/52,786.10
6. Step 6: Final answer
   x = 39,902.46