Finding the Fourth Proportional to 10,443.72, 15,669.20 and 4,599.48

Step by Step Solution

1. Step 1: Write the proportion equation
   10,443.72 : 15,669.20 = 4,599.48 : x
2. Step 2: Convert to fraction form
   10,443.72/15,669.20 = 4,599.48/x
3. Step 3: Cross multiply
   10,443.72x = 15,669.20 × 4,599.48
4. Step 4: Simplify right side
   10,443.72x = 72,070,172.02
5. Step 5: Solve for x
   x = 72,070,172.02/10,443.72
6. Step 6: Final answer
   x = 6,900.81