Finding the Fourth Proportional to 9,338.88, 12,877.12 and 9,123.84

Step by Step Solution

1. Step 1: Write the proportion equation
   9,338.88 : 12,877.12 = 9,123.84 : x
2. Step 2: Convert to fraction form
   9,338.88/12,877.12 = 9,123.84/x
3. Step 3: Cross multiply
   9,338.88x = 12,877.12 × 9,123.84
4. Step 4: Simplify right side
   9,338.88x = 117,488,782.54
5. Step 5: Solve for x
   x = 117,488,782.54/9,338.88
6. Step 6: Final answer
   x = 12,580.61