Finding the Fourth Proportional to 8,914.91, 12,298.71 and 5,376.15

Step by Step Solution

1. Step 1: Write the proportion equation
   8,914.91 : 12,298.71 = 5,376.15 : x
2. Step 2: Convert to fraction form
   8,914.91/12,298.71 = 5,376.15/x
3. Step 3: Cross multiply
   8,914.91x = 12,298.71 × 5,376.15
4. Step 4: Simplify right side
   8,914.91x = 66,119,682.89
5. Step 5: Solve for x
   x = 66,119,682.89/8,914.91
6. Step 6: Final answer
   x = 7,416.76