Finding the Fourth Proportional to 9,963.30, 13,749.64 and 5,714.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,963.30 : 13,749.64 = 5,714.76 : x
2. Step 2: Convert to fraction form
   9,963.30/13,749.64 = 5,714.76/x
3. Step 3: Cross multiply
   9,963.30x = 13,749.64 × 5,714.76
4. Step 4: Simplify right side
   9,963.30x = 78,575,892.69
5. Step 5: Solve for x
   x = 78,575,892.69/9,963.30
6. Step 6: Final answer
   x = 7,886.53