Finding the Fourth Proportional to 12,359.34, 18,538.92 and 3,125.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,359.34 : 18,538.92 = 3,125.34 : x
2. Step 2: Convert to fraction form
   12,359.34/18,538.92 = 3,125.34/x
3. Step 3: Cross multiply
   12,359.34x = 18,538.92 × 3,125.34
4. Step 4: Simplify right side
   12,359.34x = 57,940,428.23
5. Step 5: Solve for x
   x = 57,940,428.23/12,359.34
6. Step 6: Final answer
   x = 4,687.99