Finding the Fourth Proportional to 9,393.50, 12,961.92 and 5,415.92

Step by Step Solution

1. Step 1: Write the proportion equation
   9,393.50 : 12,961.92 = 5,415.92 : x
2. Step 2: Convert to fraction form
   9,393.50/12,961.92 = 5,415.92/x
3. Step 3: Cross multiply
   9,393.50x = 12,961.92 × 5,415.92
4. Step 4: Simplify right side
   9,393.50x = 70,200,721.77
5. Step 5: Solve for x
   x = 70,200,721.77/9,393.50
6. Step 6: Final answer
   x = 7,473.33