Finding the Fourth Proportional to 21,846.80, 30,152.04 and 13,880.72

Step by Step Solution

1. Step 1: Write the proportion equation
   21,846.80 : 30,152.04 = 13,880.72 : x
2. Step 2: Convert to fraction form
   21,846.80/30,152.04 = 13,880.72/x
3. Step 3: Cross multiply
   21,846.80x = 30,152.04 × 13,880.72
4. Step 4: Simplify right side
   21,846.80x = 418,532,024.67
5. Step 5: Solve for x
   x = 418,532,024.67/21,846.80
6. Step 6: Final answer
   x = 19,157.59