Finding the Fourth Proportional to 20,598.72, 28,398.74 and 16,363.84

Step by Step Solution

1. Step 1: Write the proportion equation
   20,598.72 : 28,398.74 = 16,363.84 : x
2. Step 2: Convert to fraction form
   20,598.72/28,398.74 = 16,363.84/x
3. Step 3: Cross multiply
   20,598.72x = 28,398.74 × 16,363.84
4. Step 4: Simplify right side
   20,598.72x = 464,712,437.56
5. Step 5: Solve for x
   x = 464,712,437.56/20,598.72
6. Step 6: Final answer
   x = 22,560.26