Finding the Fourth Proportional to 52,420.37, 78,586.81 and 17,340.89

Step by Step Solution

1. Step 1: Write the proportion equation
   52,420.37 : 78,586.81 = 17,340.89 : x
2. Step 2: Convert to fraction form
   52,420.37/78,586.81 = 17,340.89/x
3. Step 3: Cross multiply
   52,420.37x = 78,586.81 × 17,340.89
4. Step 4: Simplify right side
   52,420.37x = 1,362,764,791.37
5. Step 5: Solve for x
   x = 1,362,764,791.37/52,420.37
6. Step 6: Final answer
   x = 25,996.86