Finding the Fourth Proportional to 9,392.31, 12,961.31 and 5,413.34

Step by Step Solution

1. Step 1: Write the proportion equation
   9,392.31 : 12,961.31 = 5,413.34 : x
2. Step 2: Convert to fraction form
   9,392.31/12,961.31 = 5,413.34/x
3. Step 3: Cross multiply
   9,392.31x = 12,961.31 × 5,413.34
4. Step 4: Simplify right side
   9,392.31x = 70,163,886.00
5. Step 5: Solve for x
   x = 70,163,886.00/9,392.31
6. Step 6: Final answer
   x = 7,470.35