Finding the Fourth Proportional to 11,147.09, 15,384.17 and 7,114.03

Step by Step Solution

1. Step 1: Write the proportion equation
   11,147.09 : 15,384.17 = 7,114.03 : x
2. Step 2: Convert to fraction form
   11,147.09/15,384.17 = 7,114.03/x
3. Step 3: Cross multiply
   11,147.09x = 15,384.17 × 7,114.03
4. Step 4: Simplify right side
   11,147.09x = 109,443,426.23
5. Step 5: Solve for x
   x = 109,443,426.23/11,147.09
6. Step 6: Final answer
   x = 9,818.12