Finding the Fourth Proportional to 10,663.34, 15,992.22 and 4,425.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,663.34 : 15,992.22 = 4,425.12 : x
2. Step 2: Convert to fraction form
   10,663.34/15,992.22 = 4,425.12/x
3. Step 3: Cross multiply
   10,663.34x = 15,992.22 × 4,425.12
4. Step 4: Simplify right side
   10,663.34x = 70,767,492.57
5. Step 5: Solve for x
   x = 70,767,492.57/10,663.34
6. Step 6: Final answer
   x = 6,636.52