Finding the Fourth Proportional to 22,572.53, 31,155.27 and 15,019.17

Step by Step Solution

1. Step 1: Write the proportion equation
   22,572.53 : 31,155.27 = 15,019.17 : x
2. Step 2: Convert to fraction form
   22,572.53/31,155.27 = 15,019.17/x
3. Step 3: Cross multiply
   22,572.53x = 31,155.27 × 15,019.17
4. Step 4: Simplify right side
   22,572.53x = 467,926,357.04
5. Step 5: Solve for x
   x = 467,926,357.04/22,572.53
6. Step 6: Final answer
   x = 20,729.91