Finding the Fourth Proportional to 13,271.18, 18,314.31 and 7,302.69

Step by Step Solution

1. Step 1: Write the proportion equation
   13,271.18 : 18,314.31 = 7,302.69 : x
2. Step 2: Convert to fraction form
   13,271.18/18,314.31 = 7,302.69/x
3. Step 3: Cross multiply
   13,271.18x = 18,314.31 × 7,302.69
4. Step 4: Simplify right side
   13,271.18x = 133,743,824.56
5. Step 5: Solve for x
   x = 133,743,824.56/13,271.18
6. Step 6: Final answer
   x = 10,077.77