Finding the Fourth Proportional to 12,971.34, 17,902.89 and 10,339.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,971.34 : 17,902.89 = 10,339.38 : x
2. Step 2: Convert to fraction form
   12,971.34/17,902.89 = 10,339.38/x
3. Step 3: Cross multiply
   12,971.34x = 17,902.89 × 10,339.38
4. Step 4: Simplify right side
   12,971.34x = 185,104,782.81
5. Step 5: Solve for x
   x = 185,104,782.81/12,971.34
6. Step 6: Final answer
   x = 14,270.29