Finding the Fourth Proportional to 12,394.71, 17,069.48 and 10,902.15

Step by Step Solution

1. Step 1: Write the proportion equation
   12,394.71 : 17,069.48 = 10,902.15 : x
2. Step 2: Convert to fraction form
   12,394.71/17,069.48 = 10,902.15/x
3. Step 3: Cross multiply
   12,394.71x = 17,069.48 × 10,902.15
4. Step 4: Simplify right side
   12,394.71x = 186,093,976.87
5. Step 5: Solve for x
   x = 186,093,976.87/12,394.71
6. Step 6: Final answer
   x = 15,013.98