Finding the Fourth Proportional to 11,501.31, 17,231.11 and 5,266.54

Step by Step Solution

1. Step 1: Write the proportion equation
   11,501.31 : 17,231.11 = 5,266.54 : x
2. Step 2: Convert to fraction form
   11,501.31/17,231.11 = 5,266.54/x
3. Step 3: Cross multiply
   11,501.31x = 17,231.11 × 5,266.54
4. Step 4: Simplify right side
   11,501.31x = 90,748,303.73
5. Step 5: Solve for x
   x = 90,748,303.73/11,501.31
6. Step 6: Final answer
   x = 7,890.26