Finding the Fourth Proportional to 16,019.93, 22,090.52 and 10,991.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,019.93 : 22,090.52 = 10,991.50 : x
2. Step 2: Convert to fraction form
   16,019.93/22,090.52 = 10,991.50/x
3. Step 3: Cross multiply
   16,019.93x = 22,090.52 × 10,991.50
4. Step 4: Simplify right side
   16,019.93x = 242,807,922.83
5. Step 5: Solve for x
   x = 242,807,922.83/16,019.93
6. Step 6: Final answer
   x = 15,156.62