Finding the Fourth Proportional to 9,404.76, 12,948.90 and 7,159.44

Step by Step Solution

1. Step 1: Write the proportion equation
   9,404.76 : 12,948.90 = 7,159.44 : x
2. Step 2: Convert to fraction form
   9,404.76/12,948.90 = 7,159.44/x
3. Step 3: Cross multiply
   9,404.76x = 12,948.90 × 7,159.44
4. Step 4: Simplify right side
   9,404.76x = 92,706,872.62
5. Step 5: Solve for x
   x = 92,706,872.62/9,404.76
6. Step 6: Final answer
   x = 9,857.44