Finding the Fourth Proportional to 8,326.78, 11,485.52 and 5,337.88

Step by Step Solution

1. Step 1: Write the proportion equation
   8,326.78 : 11,485.52 = 5,337.88 : x
2. Step 2: Convert to fraction form
   8,326.78/11,485.52 = 5,337.88/x
3. Step 3: Cross multiply
   8,326.78x = 11,485.52 × 5,337.88
4. Step 4: Simplify right side
   8,326.78x = 61,308,300.81
5. Step 5: Solve for x
   x = 61,308,300.81/8,326.78
6. Step 6: Final answer
   x = 7,362.79