Finding the Fourth Proportional to 21,878.61, 30,233.35 and 17,898.27

Step by Step Solution

1. Step 1: Write the proportion equation
   21,878.61 : 30,233.35 = 17,898.27 : x
2. Step 2: Convert to fraction form
   21,878.61/30,233.35 = 17,898.27/x
3. Step 3: Cross multiply
   21,878.61x = 30,233.35 × 17,898.27
4. Step 4: Simplify right side
   21,878.61x = 541,124,510.14
5. Step 5: Solve for x
   x = 541,124,510.14/21,878.61
6. Step 6: Final answer
   x = 24,733.04