Finding the Fourth Proportional to 9,333.44, 12,870.24 and 8,393.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,333.44 : 12,870.24 = 8,393.12 : x
2. Step 2: Convert to fraction form
   9,333.44/12,870.24 = 8,393.12/x
3. Step 3: Cross multiply
   9,333.44x = 12,870.24 × 8,393.12
4. Step 4: Simplify right side
   9,333.44x = 108,021,468.75
5. Step 5: Solve for x
   x = 108,021,468.75/9,333.44
6. Step 6: Final answer
   x = 11,573.60