Finding the Fourth Proportional to 9,930.58, 13,714.05 and 7,956.34

Step by Step Solution

1. Step 1: Write the proportion equation
   9,930.58 : 13,714.05 = 7,956.34 : x
2. Step 2: Convert to fraction form
   9,930.58/13,714.05 = 7,956.34/x
3. Step 3: Cross multiply
   9,930.58x = 13,714.05 × 7,956.34
4. Step 4: Simplify right side
   9,930.58x = 109,113,644.58
5. Step 5: Solve for x
   x = 109,113,644.58/9,930.58
6. Step 6: Final answer
   x = 10,987.64