Finding the Fourth Proportional to 13,015.25, 19,522.69 and 3,154.61

Step by Step Solution

1. Step 1: Write the proportion equation
   13,015.25 : 19,522.69 = 3,154.61 : x
2. Step 2: Convert to fraction form
   13,015.25/19,522.69 = 3,154.61/x
3. Step 3: Cross multiply
   13,015.25x = 19,522.69 × 3,154.61
4. Step 4: Simplify right side
   13,015.25x = 61,586,458.56
5. Step 5: Solve for x
   x = 61,586,458.56/13,015.25
6. Step 6: Final answer
   x = 4,731.87