Finding the Fourth Proportional to 22,019.31, 30,391.61 and 18,476.37

Step by Step Solution

1. Step 1: Write the proportion equation
   22,019.31 : 30,391.61 = 18,476.37 : x
2. Step 2: Convert to fraction form
   22,019.31/30,391.61 = 18,476.37/x
3. Step 3: Cross multiply
   22,019.31x = 30,391.61 × 18,476.37
4. Step 4: Simplify right side
   22,019.31x = 561,526,538.87
5. Step 5: Solve for x
   x = 561,526,538.87/22,019.31
6. Step 6: Final answer
   x = 25,501.55