Finding the Fourth Proportional to 8,913.42, 12,300.94 and 5,137.14

Step by Step Solution

1. Step 1: Write the proportion equation
   8,913.42 : 12,300.94 = 5,137.14 : x
2. Step 2: Convert to fraction form
   8,913.42/12,300.94 = 5,137.14/x
3. Step 3: Cross multiply
   8,913.42x = 12,300.94 × 5,137.14
4. Step 4: Simplify right side
   8,913.42x = 63,191,650.91
5. Step 5: Solve for x
   x = 63,191,650.91/8,913.42
6. Step 6: Final answer
   x = 7,089.50