Finding the Fourth Proportional to 11,271.12, 16,905.87 and 5,031.69

Step by Step Solution

1. Step 1: Write the proportion equation
   11,271.12 : 16,905.87 = 5,031.69 : x
2. Step 2: Convert to fraction form
   11,271.12/16,905.87 = 5,031.69/x
3. Step 3: Cross multiply
   11,271.12x = 16,905.87 × 5,031.69
4. Step 4: Simplify right side
   11,271.12x = 85,065,097.02
5. Step 5: Solve for x
   x = 85,065,097.02/11,271.12
6. Step 6: Final answer
   x = 7,547.17