Finding the Fourth Proportional to 8,973.09, 13,444.82 and 5,214.31

Step by Step Solution

1. Step 1: Write the proportion equation
   8,973.09 : 13,444.82 = 5,214.31 : x
2. Step 2: Convert to fraction form
   8,973.09/13,444.82 = 5,214.31/x
3. Step 3: Cross multiply
   8,973.09x = 13,444.82 × 5,214.31
4. Step 4: Simplify right side
   8,973.09x = 70,105,466.91
5. Step 5: Solve for x
   x = 70,105,466.91/8,973.09
6. Step 6: Final answer
   x = 7,812.86