Finding the Fourth Proportional to 22,572.93, 31,155.83 and 15,019.58

Step by Step Solution

1. Step 1: Write the proportion equation
   22,572.93 : 31,155.83 = 15,019.58 : x
2. Step 2: Convert to fraction form
   22,572.93/31,155.83 = 15,019.58/x
3. Step 3: Cross multiply
   22,572.93x = 31,155.83 × 15,019.58
4. Step 4: Simplify right side
   22,572.93x = 467,947,481.15
5. Step 5: Solve for x
   x = 467,947,481.15/22,572.93
6. Step 6: Final answer
   x = 20,730.47