Finding the Fourth Proportional to 11,019.51, 16,516.31 and 9,062.55

Step by Step Solution

1. Step 1: Write the proportion equation
   11,019.51 : 16,516.31 = 9,062.55 : x
2. Step 2: Convert to fraction form
   11,019.51/16,516.31 = 9,062.55/x
3. Step 3: Cross multiply
   11,019.51x = 16,516.31 × 9,062.55
4. Step 4: Simplify right side
   11,019.51x = 149,679,839.88
5. Step 5: Solve for x
   x = 149,679,839.88/11,019.51
6. Step 6: Final answer
   x = 13,583.17