Finding the Fourth Proportional to 8,133.78, 12,208.35 and 5,061.78

Step by Step Solution

1. Step 1: Write the proportion equation
   8,133.78 : 12,208.35 = 5,061.78 : x
2. Step 2: Convert to fraction form
   8,133.78/12,208.35 = 5,061.78/x
3. Step 3: Cross multiply
   8,133.78x = 12,208.35 × 5,061.78
4. Step 4: Simplify right side
   8,133.78x = 61,795,981.86
5. Step 5: Solve for x
   x = 61,795,981.86/8,133.78
6. Step 6: Final answer
   x = 7,597.45