Finding the Fourth Proportional to 9,962.45, 13,747.91 and 5,714.22

Step by Step Solution

1. Step 1: Write the proportion equation
   9,962.45 : 13,747.91 = 5,714.22 : x
2. Step 2: Convert to fraction form
   9,962.45/13,747.91 = 5,714.22/x
3. Step 3: Cross multiply
   9,962.45x = 13,747.91 × 5,714.22
4. Step 4: Simplify right side
   9,962.45x = 78,558,553.71
5. Step 5: Solve for x
   x = 78,558,553.71/9,962.45
6. Step 6: Final answer
   x = 7,885.47