Finding the Fourth Proportional to 8,196.78, 11,312.38 and 4,659.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,196.78 : 11,312.38 = 4,659.50 : x
2. Step 2: Convert to fraction form
   8,196.78/11,312.38 = 4,659.50/x
3. Step 3: Cross multiply
   8,196.78x = 11,312.38 × 4,659.50
4. Step 4: Simplify right side
   8,196.78x = 52,710,034.61
5. Step 5: Solve for x
   x = 52,710,034.61/8,196.78
6. Step 6: Final answer
   x = 6,430.58