Finding the Fourth Proportional to 9,338.40, 12,880.56 and 7,801.08

Step by Step Solution

1. Step 1: Write the proportion equation
   9,338.40 : 12,880.56 = 7,801.08 : x
2. Step 2: Convert to fraction form
   9,338.40/12,880.56 = 7,801.08/x
3. Step 3: Cross multiply
   9,338.40x = 12,880.56 × 7,801.08
4. Step 4: Simplify right side
   9,338.40x = 100,482,279.00
5. Step 5: Solve for x
   x = 100,482,279.00/9,338.40
6. Step 6: Final answer
   x = 10,760.12