Finding the Fourth Proportional to 10,938.82, 15,083.94 and 7,165.30

Step by Step Solution

1. Step 1: Write the proportion equation
   10,938.82 : 15,083.94 = 7,165.30 : x
2. Step 2: Convert to fraction form
   10,938.82/15,083.94 = 7,165.30/x
3. Step 3: Cross multiply
   10,938.82x = 15,083.94 × 7,165.30
4. Step 4: Simplify right side
   10,938.82x = 108,080,955.28
5. Step 5: Solve for x
   x = 108,080,955.28/10,938.82
6. Step 6: Final answer
   x = 9,880.49