Finding the Fourth Proportional to 9,116.01, 12,579.93 and 5,137.05

Step by Step Solution

1. Step 1: Write the proportion equation
   9,116.01 : 12,579.93 = 5,137.05 : x
2. Step 2: Convert to fraction form
   9,116.01/12,579.93 = 5,137.05/x
3. Step 3: Cross multiply
   9,116.01x = 12,579.93 × 5,137.05
4. Step 4: Simplify right side
   9,116.01x = 64,623,729.41
5. Step 5: Solve for x
   x = 64,623,729.41/9,116.01
6. Step 6: Final answer
   x = 7,089.04