Finding the Fourth Proportional to 8,967.63, 12,374.79 and 5,190.54

Step by Step Solution

1. Step 1: Write the proportion equation
   8,967.63 : 12,374.79 = 5,190.54 : x
2. Step 2: Convert to fraction form
   8,967.63/12,374.79 = 5,190.54/x
3. Step 3: Cross multiply
   8,967.63x = 12,374.79 × 5,190.54
4. Step 4: Simplify right side
   8,967.63x = 64,231,842.49
5. Step 5: Solve for x
   x = 64,231,842.49/8,967.63
6. Step 6: Final answer
   x = 7,162.63