Finding the Fourth Proportional to 9,116.08, 12,580.04 and 5,137.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,116.08 : 12,580.04 = 5,137.56 : x
2. Step 2: Convert to fraction form
   9,116.08/12,580.04 = 5,137.56/x
3. Step 3: Cross multiply
   9,116.08x = 12,580.04 × 5,137.56
4. Step 4: Simplify right side
   9,116.08x = 64,630,710.30
5. Step 5: Solve for x
   x = 64,630,710.30/9,116.08
6. Step 6: Final answer
   x = 7,089.75